There are lot of telegram channels who gives free airdrop links and bounties, there are some of it that issues fake airdrops but some are still legit. If you really want to find good bounties and airdrop links/forms to participate with, i think it is better to seek it only in this forum, so that you can abide with the proper rules for airdrops or bounties and at the same time, you are getting some info about it.