Apart from what "CryptoEnthused" provided, you can use the following as well:
1. BountyHive
2. Bounty Portals
3. BountiesAlert
4. BOUNTYPLATFORM
5. AmaZixBOUNTIES
6. BountyLord
7. BountyGuru1. BountyHive
2. Bounty Portals
3. BountiesAlert
4. BOUNTYPLATFORM
5. AmaZixBOUNTIES
6. BountyLord
8. IcobountyHunt
Continue the list)
I think this is a good bounty platform but I think kyc is mandatory Just check it.
11. BountySuite
12. BountyHub
This is good also
Hopefully it will helps for ICO Bounty Hunters <3