I’ve settled on switching to startmail. Its pretty cheap, based in the Netherlands, offers aliases, (which are important to me for keeping emails organized and privacy.) and allows emails to be pgp encrypted. The pgp encryption is honestly a better feature than proton’s encryption since you can communicate with people who don’t have a proton account and still keep emails secret from the provider. (cough cough)

Also it offers IMAP support so I set it up with thunderbird, and I don’t have to bother with plugins or anything like with proton. I’m honestly more happy with startmail than I was with proton so far, although its only been a few days.