I have experience with porkbun and namecheap. I recommend porkbun. Mostly because they have the best prices and they work. Namecheap works, but the renewal prices get jacked up and I don't appreciate it.

In addition to that, I remember reading here on HN about namecheap screwing with someone's DNS records and blocking/banning someone because a twitter user complained about the registrant being "problematic" or something.