inwx is good for EU countries TLD. For generic COM/NET I use http://internet.bs ,is pretty good. gandi was good too, but I was told that email is not free anymore with them. You can buy plain email service for a domain at Swisserland based https://www.infomaniak.com for 18 Euros a year (IMAP, 5 Emails)

Don't use Cloudflare https://expatcircle.com/cms/why-you-should-never-use-cloudfl...

If you do for domain price only, there are comparison sites. Just recently sombody posted one on YC. It may have been this one: https://tld-list.com/

Spaceship is owned by namecheap. Namecheap is supposed to be good too but I don't undertand why they would undercut their own prices.

EDIT: Cheapest non-bait registrar seems to be cosmotown with 8.99 USD. They seem to prevent C&P on their about page and one of their "partners" a German company, does not even have a webpage. Turing Crypto GmbH

I think I pass.