You will quickly understand that in order to earn at least something you will have to do not 10-20, but more than a hundred airddrops, of which a small part will bring you the treasured money.
How many new projects over the past year hit the top 200-500? Extremely few. And how many of them did airdrops? Even less.
unlike 3-4 years ago, airdrop always had a high value, but now I think it's not worth, even doing bounties that are more difficult than airdrops, are already difficult to earn, let alone airdrops. but 1 month ago there was an airdrop XLM with keybase, they gave $50 every month, that's really a rare thing for now.