Custom Domain Email hosting

mxroute.com/ Annual price starting at 10GB unlimited domains, unlimited accounts
Zoho seems pretty cheap and they aren’t in the biz of selling your info.
Fastmail www.fastmail.com/pricing/
Mailbox.org register.mailbox.org/en
Servermx www.servermx.com/en/pricing/
POBox.com
Migadu www.migadu.com/
Greatmail www.greatmail.com/email-hosting-pricing.php