Here: https://purchasewithpurpose.io/category/email/

IMHO:

• Infomaniak is Swiss, not that private, but they have a great “office suite” on the web and they do web hosting too IIRC
• Fastmail is misleading because it’s Australian (bad for privacy) and they host the emails in the USA
• Tuta is what I use, they still don’t have a “drive” yet but it’s supposedly coming this year

And the site forgot to mention Runbox, Mailbox, and a few others. Most should be stable and cheap anyway.