Back in the day, earlier 2017 was a great time for claiming free airdrops and get some good amount for doing simple tasks. In return, you would get some altcoin which you could sell for bitcoin. But these days, airdrops worth nothing. I haven't participated in any airdrop in the last few year, haven't heard any airdrop to give a good amount too. Anything you are looking for free, is a waste of time these days.