Bounties today like faucets 5 years ago, it is very difficult to find good bounties even those managed by top managers with good reputation do not guarantee that the bounties they manage can be successful, in my opinion this is because of the difficulty of the project for the collection of money, so many fail .
if we dont find it now, maybe someday we will. just keep being active here and bounty manager will offer new campaign which is maybe one of them will be good campign. maybe you should try to join in retroactive airdrop which is be early user for decentralized exchange or bridge platform that have no token yet.this is big opportunity to earn worth of reward. research about it and you will interested.