The twitter user Cryptovium started a voting poll asking about the sentiment of the current Proof-of-Work Ethereum mining pools. He asked the hard working mining community if they will be mining $RVN, $FLUX or $ETC in his poll. Some user replies added $KDA, $KAS and $ETHW (which will be an $ETH fork at the day of the merge) as a viable option.
The Bismuth sha224 blockchain is the perfect candidate for the GPU mining community. The following video demonstrates setting up Bismuth mining.
Bismuth Mining Options
The biggest BIS mining pool is Eggpool. Some miners might also try the small Coinsaurus pool. And if you prefer to solo mine, then the open source alternative kbkminer is the ideal strategy.
The Python Blockchain
Bismuth is the first python blockchain launched back in 2017. The Bismuth Tokenomics from March 2022 look great compared to most coins in the crypto industry.

BIS Links
Github Repo: https://github.com/bismuthfoundation
Official Website: https://bismuthplatform.com
Explorer: https://bismuth.im
Coinmarketcap: https://coinmarketcap.com/currencies/bismuth/