Porkbun is the cheapest and easiest for registration. They support a bunch of payment options.
Cloudflare has started to allow domain transfers at cost, but they don’t offer new registrations yet.
I like Gandi.net because it lets you work as a team. You can assign domains to an organization and control who can manage them. Two-factor authentication is also available, which is great for security.
Gandi isn’t always the cheapest, but they’re reliable and straightforward.
I stick with Gandi. You get DNSSEC and two 3GB mailboxes with unlimited aliases included.
You could go with NameSilo or hostic.uk (they’re partners with NameSilo).
There are lots of good options. GoDaddy is popular, but I prefer Namecheap for free domain privacy. They also offer affordable WordPress hosting if you need that. Domain.com is another budget-friendly option. Hope this helps!
Stay away from GoDaddy—their prices are way too high for no good reason!
I like NameSilo. Their chat support is super quick, and it’s affordable.