Cloudflare Registrar has the best prices since they literally don't make any money on selling domains. They also fulfill all your requirements. I recently transferred my domain from Hover to Cloudflare. No issues and I can save some money. Hover is fine but their prices have been getting more and more expensive.
Cloudflare is straightforward to use but watch out, they don’t let you use custom nameservers, which is very unusual for a domain registrar. As great as Cloudflare’s nameservers are, this was a dealbreaker for me and I eventually moved all my domains off of there.
