Both Tuta and Proton are decent selections.
Some of the rumblings from proton admin are a little concerning... too early to see if they're going to have issues or not. Their service is robust and easy to use.
Tuta seems to be a fairly good choice from a privacy standpoint. They aren't nearly as robust of a product package and using it feels a little old skool and clunky... but they're actively working on it... so hopefully it will change.
The biggest thing with proton is that they offer a suite of products. They look to compete directly with the goog on their offerings... so they have email, calendar, password manager, file drive, wallet, whatever else... and they're working to integrate them. So if you use a plethora of g-products... it's more of a smooth transition because there are more analogs to use. If you have already diversified away from a monolithic product base, then this isn't an issue.
Did Roko write this?