It’s nothing to do with [difficulties in using multiple platforms]. It’s to do with the massive backlash they got on Fedi for their CEO being all Trumpy and somewhat horrible right wing. So they’ve run away because they were made to feel unwelcome on account of us not letting their BS fly.
fuck proton. finally started moving to it from gmail like a month ago. then the ceo thing happened, now this. good thing i only changed email to a few places so i can immediately steer away...
I found this site useful. The list of alternatives is very large.
From my looking around at other info and advice, I'd say that Posteo is the best one if you don't have custom domains; and that mailbox.org or possibly Tuta mail is best if do need a custom domain. Tuta is probably best if you need it to be free.
Another solid option not on that list is fastmail.fm (which is Australian).
Kind of. If you sign up with their cheapest plan €3/month you get 15 email addresses included (so some can be aliases) or can also use a custom domain.
If anyone wants my referral link you get some months free I think, but they will also give you a free email address with 5gb storage if I remember right.