Finding a legit airdrop, which actually pays valuable coins is hard work. Most airdrop websites on the internet, just post any garbage airdrop out there. Most airdrop aren't worth spending any time, since their coins are useless and won't ever gain any value.

Instead of trusting any shady airdrop website you should monitor the Altcoin section here on Bitcointalk for good projects. Some good projects offer bounty campaigns and free airdrops. Select those and get your free coins.

There is no point sharing your information with every shady airdrop out there. Most coins will have no value anyway. If the project is garbage, the airdrop coins are garbage too!

Although i never follow airdrop, perhaps i can suggest this services : https://bountyhive.io/

I often find that websites hanging around (recommended by other members) in this forum. Please always do due diligence first before you decide to use their services.