Only a very trustworthy project would be able to give you a great airdrop because of the price rising in the future, a spam project will just give you nothing
Yes, I think all airdrops available on CMC are good and they are also paying. Even though they have a lottery system but there is a chance to earn $40/$50 if you won.
Link:
https://coinmarketcap.com/airdrop/Yeah many airdrop have limited participant so its like a lottery system, but its how free money usually works. Its also the reason why we shouldnt lay on airdrop for life.