Here is the list of best sites from where you can Claim Free zero coins.
You need to have ZeroCoin Wallet address to claim from these websites. If you don't have one, you can create one on ZeroChain.

Here is the list of best websites 

Donald Coin 
( Faucet,Daily Bonus, PTC. ZeroCoin, LTC and BTC Instant Payout)

Rimi Coin 
(Faucet, Daily Bonus and Miner. Zero Coin and LTC Instant Payout)

2Mars Zero Faucet 
(Faucet, Offering Pool Mining, 0.05 min payout)

Zerads 
(Faucet and ad Network, You can advertise your banners without spending anything from your Pocket. Instant Payout in Zero Coins)

CamelBTC 
(Play to Earn Game, that have different ways to earn. Payout in BTC and Zero Coin)

My Zero Land 
(Faucet, Daily Bonus, PTC. ZeroCoin Instant Payout)

Free Zero Coin 
(Faucet and Daily Bonus. Zero and LTC Instant Payout)

Cool faucet 
(Faucet, Daily Bonus, ShortLinks, OfferWalls and Miner. Payout in ZeroCoin.)

ZeroCoin Online
(Faucet, Miner, Daily bonus, Achievement Bonus and PTC. Payout in ZeroCoin)

VictoryChilds 
(Faucet, Instant payout in Zero Coins and LTC)

RimaKoko 
(Faucet, Zero Coin Instant Payout)

Zero Faucet 
(Faucet, Zero Coin Instant Payout)

ZeroCoin Top 
(Faucet, Zero Coin Instant Payout).

How I'm using ZeroCoins.

In my opinion Zerads , Doneld Coin and My Zero Land are offering really cheap advertising options. I use these platforms to advertising my links and banners.
I also use PTP sites like Rotate4all and advertise my ptp links here. And getting 200% return.

P.S If you join using my links, I will get Referral Commission.