join airdrops that only as about your address.
most of the airdrops are just collecting info about you that turns into a scam.
just avoid giving them your email address or ID's
Or just create an email, that you are not afraid to drawn in spam.
Airdrops are not dangerous, as long as you dont copy/paste your private key accidentally and dont upload KYC info for a token/coin with mysterious background.
I'm not afraid to go through the KYC procedure, i have some "special" documents for it)