New Option:

domain1.com - for main email

domain2.com - for email forwarding with Addy.io

This is what I do (but simplelogin). I have a wildcard address (*.email@domain2.com) that let’s me setup individual accounts for each service (e.g., lemmy.email@domain2.com)

myname@domain1.com is only shared with real humans or critical services that I don’t want to risk dealing with the hassle if simplelogin goes belly up (I know I can move the DNS records and recreate the accounts, but at this point I have dozens of email addresses and am prone to forgetting things).

I set up a mail server which rejects mail to addresses at my spam domain that don’t match a regexp, and sends the ones that do to an inbox. That way I can sign up to each service with a different address.

I have a domain2 for all mailing list and non-critical services, which I’d be able to take elsewhere if I ever change provider (I’m with Tuta so I’m hoping not to have to do that anytime soon).

I own domain1 for all friends, family and critical services (like banking etc). So far, it works well.