This article focuses on so called "Bitcoin"cryptocurrencies besides Bitcoin core. You maybe heard about Bitcoin cash or Bitcoin SV but there are a lot more. Most of them are quite unknown or already abandoned. This post is just a brief overview, not a in depth review for each fork. I made it for information and entertaining purposes and would never invest in one of the coin. There are even more Bitcoin knock-offs which i didn't cover.
Bitcoin Cash

Ticker -> BCH
Website -> https://www.bitcoincash.org/
Whitepaper -> https://www.bitcoincash.org/bitcoin.pdf
Market Cap : $ 5,923,244,985 , Circulation Supply 17,936,188 BCH, Max Supply 21,000,000 BCH
BCH was forked in 2017, the fork increased the block size to 8MB. The project owns the bitcoin.com domain. Bitcoin Cash trades on digital currency exchanges including Bitstamp, Coinbase, Gemini, Kraken, Bitfinex, and ShapeShift using the Bitcoin Cash name and the BCH ticker symbol for the cryptocurrency. The Bitcoin Cash owners, especially Roger Ver, like to pronounce it Bcash.
Bitcoin SV

Ticker -> BSV
Website -> https://bitcoinsv.io/
Market Cap : $2,552,880,510, Circulation Supply 17,854,986 BSV, Max Supply 21,000,000 BSV
Bitcoin SV is hardfork from Bitcoin Cash and was involved in a "Hash-war" with Bitcoin ABC (which I dont have in this list). Bitcoin SV claims to be the “real and original Bitcoin”. Bitcoin SV is the best bitcoin fork for me cause it has a unique usecase: You can run Windows XP on the Bitcoin SV Blockchain. BSV trades on CoinBene, KuCoin, OKEx, HitBTC, BitMart and many more.
Bitcoin 2

Ticker -> BTC2
Website -> https://www.bitc2.org/
Whitepaper -> https://www.bitc2.org/zBTC2-Bitcoin-2-Zerocoin-Protocol
Circulation Supply 17,288,923 BTC2 , Max Supply 21,000,000 BTC2
There is not a lot information available about BTC2, it uses a Proof of Stake algorithm an is not premined. It trades on Crex23, Escodex (never heard of these exchanges), so its a quite small project. In Feb 2018 they pruned the Blockchain from 150 GB to 1,5 GB, dont ask me how.
Bitcoin Black

Ticker -> BLACK
Website -> https://bitcoin.black/
Whitepaper -> https://16pfmdgkdky4f7xnwpo6to37-wpengine.netdna-ssl.com/wp-content/uploads/2019/05/Bitcoin_Black_Whitepaper_2.2.pdf
Max Supply 36 000 000 000 BLACK
I honestly dont know what this coin is good for. It looks like an ERC-20 token on the ethereum blockchain. "Bitcoin Black aims to be the cryptocurrency of the people, by the people for the people" says the website, and it also has an political approach "Education:Community based education,Bringing manipulation to light" (wow). BLACK is not traded on any exchange yet. But to be fair, it has a community and the forum is in use. But be careful, maybe its a SCAM.
First Bitcoin

Ticker -> BIT
Website -> https://firstbitcoin.io/
Whitepaper -> https://firstbitcoin.io/white-paper/
Max Supply 20,707,629,255 BIT
First Bitcoin is issued by First Bitcoin capital. The whitepaper on the homepage refers to a TeslaCoil Coin. I think they have mixed up something or this coin doesn't exist. Coinmarketcap and other sites say its tradeable at livecoin.net. Ticker als also used by Bitmonkey so maybe this project is completely dead.
Bitcoin Red
Ticker -> BTCR
Website -> https://www.bitcoinred.io/ (dead)
Whitepaper ->
Market Cap : $80,841 , Circulation Supply 20,550,001 BTC, Max Supply 21,000,000 BTCRED
And another one (Dj Khaled voice) cancelled projekt. Looks like erc-20 token on the ethereum blockchain. Website is dead and I only found some infos on cryptoslate:"Bitcoin Red is an Ethereum token meant to be used and swapped socially to express emotions. For example, the coin creator(s) says red is the color of passion and leadership but also of anger." Seems like the creators are quite smart.
Bitcoin Scrypt

Ticker -> BTCS
Website -> https://bitcoinscrypt.io/
Whitepaper ->
Market Cap : $253,017 USD , Circulation Supply 17,615,950 BTCS
Bitcoin sCrypt is a decentralized blockchain crypto-currency that utilizes the scrypt proof-of-work algorithm. Bitcoin-sCrypt was originally developed as a more decentralized alternative to Bitcoin-core. Its traded on TradeSatoshi, NovaExchange and FreiExchange. This coin is also involved in http://cryptovoter.org/, a decentral blockchain voting system. Last Bitcointalk post is from 06th of august, so this project is still live. Additional info.
Bitcoin Private

Ticker -> BTCP
Website -> https://btcprivate.org/
Whitepaper -> https://btcprivate.org/btcp-whitepaper
Market Cap : $1,611,143, Circulation Supply 4,725,513 BTCP, Max Supply 22,873,588 BTCP
This coin focuses (you guessed it) on privacy. Its traded on TradeSatoshi, Nanex, OctaEx, Exrates, Barterdex and HitBTC. Fork took place on March 2, 2017. Blocksize is 2 MB, and it uses the zk-SNARKs as privacy protocol. They forked the Bitcoin chain and the Zlassic Chain together(?). You can download a one-click-miner from their homepage.
BitcoiNote

Ticker -> BTCN
Website -> https://www.bitcoinote.org
Whitepaper -> https://www.bitcoinote.org/whitepaper.pdf
Market Cap : €142.150,21, Circulation Supply 10.600.000 BTCN, Max Supply 21.000.000BTCN
Here is a creative knockoff name.The coin combines the familiarity of Bitcoin and advantages of the CryptoNight-Lite Variant 1 algorithm. It uses the Proof of work algo and is tradeable at STEX, Crew24 and has a dynamic blocksize. Last twitter post is from March 23rd, so its not dead. It is ASIC resistant, which means it is oriented towards GPU mining. Any device with a standard graphic card can be used.
Bitcoin Z

Ticker -> BTCZ
Website -> https://btcz.rocks/
Whitepaper -> https://drive.google.com/file/d/19eJ09gwba5Ix9k3Y8Kk7NqdTbnUTFXDj
Market Cap : $1,185,962, Circulation Supply, Max Supply 21.000.000 BTCZ
BitcoinZ is dedicated to The Purest Son of Liberty - Thaddeus Kosciuszko. Never heard of him but must be a cool dude. Coin uses the Proof of Work algo, has no premine and is 100% decentral. BitcoinZ prides itself on 100% community inclusion - the community posts open and public proposals for change that are voted on. Its traded on EXMO, Crex24, SafeTrade, BarterDEX and many more. You can find the dev proposals on https://info.btcz.rocks/.
Bitcoin Platium

Ticker -> BTP
Website -> https://bitcoinplatinum.github.io/
Whitepaper -> https://bitcointalk.org/index.php?topic=2316571.0;all
Market Cap : 0 , Circulation Supply, Max Supply 21.000.000 BTP
Well, this is easy, it´s "The World Best Blockchain Network that can ever be". Its uses the Equihash aglo and has 2MB blocksize and only traded at shuzbi. No info about the team on the website or any other source. Whole project could be a SCAM. To be more precise, it is a SCAM.
Lightning Bitcoin

Ticker -> LBTC
Website -> https://lbtc.io/
Whitepaper -> https://chat.lbtc.io/topic/37-faq/
Market Cap : $12,315,843, Circulation Supply 3,860,808 LBTC, Max Supply 7,465,926 LBTC
The fork started on Block 499.999. Lightning Bitcoin is a fork of the Bitcoin blockchain. By adopting DPoS consensus mechanism with 2M blocksize, Lightning Bitcoin improves txn speed, promotes decentralization and also supports smart contracts. Lightning Bitcoin combines the advantages of Bitcoin and Ethereum and creates a more valuable and functional blockchain system. Its traded on yobit, digifinex, coinegg and many more. Last bitcointalk post is from april, so there is not happening much.
Super Bitcoin

Ticker -> SBTC
Website -> http://superbtc.org/
Whitepaper ->
Max Supply 21,210,000 SBTC
Couldnt 100% figure out what this project is about. Only differs from the blocksize. Oh :"Support Turing-complete smart contracts to enable more functionality Increase BTC scalability so maybe we´ve got the ETH killer here. I like their roadmap: Stage 1-Refactoring Bitcoin, Stage 2-Activate smart contract,Stage 3-Support Lightning Network,Stage 4-Large block,Stage 5-Zero knowledge proof. Roadmaps with no timetable make no sense to me.
Bitcoin Diamond

Ticker -> BCD
Website -> https://www.bitcoindiamond.org
Whitepaper -> https://btcd.io/wp-content/uploads/2018/08/Bitcoin-Diamond-Whitepaper-1.pdf
Market Cap : $151,278,166 USD , Circulation Supply 186,492,898 BCD, Max Supply 210,000,000 BCD
Another pretty active knockoff, place 45 at CMC. Launched by team EVEY& Team 007 the fork occurring at at block height 495866, implemented changes including a new proof of work algorithm OPTIMIZED X13(GPU), Blocksize is 8MB and the current blockchain is 135GB big. Its tradeable on OKEx, Binance, Huobi, Gate.io and many more.
Bitcoin Gold

Ticker -> BTG
Website -> https://bitcoingold.org/
Whitepaper -> https://github.com/BTCGPU/BTCGPU
Market Cap : $260,971,100 , Circulation Supply 17,513,924 BTG, Max Supply 21,000,000 BTG
Fork occurred on October 24, 2017 on block 419406. Bitcoin Gold changed Bitcoin’s proof-of-work algorithm from SHA256 to Equihash. This coin suffered a rare "51% Attack". It listest on Binance, Bitfinex, Bithumb and many more. Last exchange listing (LATOKEN) ist from august 5th, so the project is still active.