Mailbox was my choice when I gave up on Gmail. Calendar, contacts and email not tight to a specific client plus only 12 euros a year own me over.

Only thing I don’t love it’s their 2FA. It substitutes your password for a pin+2facode. Kind of weird if you ask me.

OVHcloud is an option, that’s what I migrated to.

www.tuxedocomputers.com looks like a great alternative.

If you allow me just an opinion, both of those projects are still amazing projects even if not EU based, that defends free open source and right to repair, so do consider that when making a choice.