I use fastmail.com to generate e-mail aliases. Creation is rate limited, but they are virtually unlimited; I have 500+ and counting. Aliases are randomly generated as wordone.wordtwo1234@fastmail.com, so they aren't identifiable to your account.
Also there’s an iOS app called Lemon in pre-alpha. https://lemm.ee/post/127800
I use fastmail.com to generate e-mail aliases. Creation is rate limited, but they are virtually unlimited; I have 500+ and counting. Aliases are randomly generated as wordone.wordtwo1234@fastmail.com, so they aren't identifiable to your account.