For just a paid provider where you are the customer not the product, consider FastMail or a hosting offering such as NameCheap. By hosting I mean the one that is part of their hosting plans not their email specific offering though that is interesting also but quite expensive.
For privacy specifically take a look at https://www.privacyguides.org/en/email/ .
For just a paid provider where you are the customer not the product, consider FastMail or a hosting offering such as NameCheap. By hosting I mean the one that is part of their hosting plans not their email specific offering though that is interesting also but quite expensive.