I think the last project that offer the reward of Ethereum is IOVO if i'm not mistaken. But it seems the bounty is in pending and yet to announce when will it continue again. if you wish, you could keep an eye on it and hope it will continue again.
No, I participated in the ICO ICOVO campaign, there they paid with OVO tokens. By the way, one of the few ICOs, which after a while paid the bounty hunters the promised tokens right into their wallets. Because now it is rarely which ICO team pays to our wallets. Right now it is not clear why we give the addresses of our wallets.
Ethereum is now paying very rarely, much less often than in Bitcoin. We can say that these are rare and isolated cases. I would like, of course, to have more.