We also got
https://www.coinopsy.com/dead-coins/There's too many dead coins already and it will be filled more very soon once the altcoin market collapses and BTC dominance keeps on increasing.
Thank you. That website is great. Now I can check all bounty campaign that I joined.
If that's only your purpose I think if you are joining bounties currently they won't list it until that project declares that they are done with it.