Thank you for making this thread! 
Have you considered adding CLAMS to the list? While not really a fork of bitcoin, every bitcoin address above a certain (very small) balance in May 2014 received a fixed amount of CLAMS in an airdrop (like BTX, but there wasn't some form to claim it, the airdrop was entirely on-chain and all the outputs exist already). The amount is worthwhile and a few of my friends were surprised to find they had hundreds of dollars hiding in their old wallets when I told them about it, so it may be a useful addition to this list even though it's ancient.
Have you considered adding CLAMS to the list? While not really a fork of bitcoin, every bitcoin address above a certain (very small) balance in May 2014 received a fixed amount of CLAMS in an airdrop (like BTX, but there wasn't some form to claim it, the airdrop was entirely on-chain and all the outputs exist already). The amount is worthwhile and a few of my friends were surprised to find they had hundreds of dollars hiding in their old wallets when I told them about it, so it may be a useful addition to this list even though it's ancient.