Duckduckgo has an email redirect thing where you can make temporary addresses that forward to your normal one.

I use forwarders on a domain I own that point to my primary acct.

If you’re making a throwaway account or something not important you can use 10minutemail. It’s a website and is free. Been using it for a while.

I like guerrilla mail (short term email generation) but I’ve found that a lot of their domains are blocked by these sites I’m trying to sign up for >:(

I use Gmail as a trash account for easy logins and proton for the rest with Gmail forwarded to proton so I never have to open Gmail itself.

I have an account with Tuta. I set it up to be able to use my own domain, so Ive created a few throwaway accts.

I use (and created) https://port87.com. It lets you use a different address for every account and keeps them all organized. It’s great for managing accounts. (And I have literally hundreds of accounts.)

One of the nice things is you don’t need to create a new email beforehand. You can give out an email address that starts with yourusername-, and it just works. You get a new label in your account that you can approve and it goes in with all your other labels.

You can also enable screening on a label if you wanna use it for real people, then it will screen new senders before you see their email.