self host. you can get great deals on domains and have whatever you want. Hell in many cases you can get free domains with hosting. my domain is a .ca (i'm Canadian) and I got it free for 2 years with a hosting plan that costs me $50 a year. So I'm already saving over Proton, It's local to me, and I can have unlimited accounts and bandwidth. I also use it to host my portfolio site.

Then I also have my own home server which I use for VPN, Backups, Bitwarden, Git Repos, torrents/media, even have my own searx search engine on it.