Could you please recommend the best sites and groups to me please?
CryptoAirdrops:
https://twitter.com/CryptoAirdrops
https://t.me/crypto_airdrops
https://www.facebook.com/CryptoAirdrops/
AirdropAlert:
https://twitter.com/AirdropAlert
https://t.me/AirdropAlert
https://www.facebook.com/AirdropAlert/
There are many more, but most of them are only posting shady or scammy airdrops.
I have also found a new airdrop. It is a Telegram airdrop by RETAINLY. They drop RETN tokens worth of 20 Usd to every Telegram user: https://retainly.supportbee.com/389-retainly-ico/831-bounty-program/2682-retn-telegram-bounty