Why not join the project in bountyhive? Clear rules and professional team. While it does not guarantee that projects in bountyhive will all be successful, you will be spared the deceptive project. Currently I also follow the signature of one project in bountyhive.
I wouldn't advice the op to choose any bounty from bountyhive. Since I've been participating in their bounty, none of their project has earned me $20 let alone $100. He can look for a good project in this forum or project from Smauni or kryptical