I know this is not an easy job because manager has full responsibility for "hunters", especially for their payments. But I want to know, where can I get new project that wants to do a bounty campaign? maybe there is a website that provides such a service or something else?
If you want to become a Bounty Manager, then explore this market, famous Bounty Manager on this forum.
You should not take on all projects, because if the project is scammed, then you will lose the trust of the community and your career will quickly end.
Read the yahoo62278 interview
https://bitcointalk.org/index.php?topic=5262967.msg54890462#msg54890462Coolcryptovator interview
https://bitcointalk.org/index.php?topic=5262967.msg54992659#msg54992659and other bounty managers.
I think that this market is decreasing, well-known bounty managers and companies with a reputation in the market will find their clients, and you will have to work actively for more than one year for the sake of reputation