It is really hard to find 1-3 worthy bounties, because most of them are bullshit and you will just waste your time doing that.
Now I keen on bounties with existing coins listed on exchanges.
But the problem is, when the coins is existed on the market and they need a bounty campaign again, it means that those coins is dead and need some exposure again. That is the main reason to all bounty campaign like that, correct me if I'm wrong.