I have been using DuckDuck for several years and like it, even use its browser version on my Iphone and its not bad. I wish there were more free email sites out there than google and outlook though.
There is “ProtonMail” (Swiss/encrypted/”Free” to a point).
Also a “list”: (can’t vouch for any on there except “ProtonMail)
https://itsfoss.com/secure-private-email-services/
Or buy “www.Sarge83.com” and host your own email...not that expensive! ;-)