It seems to be what Rachel decided on.

Must be other good ones? Somewhat prefer something in the UK (but have been using Gandi so its not essential).

I don't know about the UK, but if you want to keep things in Europe then I can vouch for Netim in France.

INWX in Germany also seems well regarded but I haven't used them.

Gandi prices went way way up. I've been using Porkbun too.

I've been on Namecheap for years but I'm ready to move just because they refuse to support dynamic AAAA records. How's Porkbun on that front?

Not sure, I use dnsimple for dns and wrote my own little service to update my A record, no ip6 in my corner of the world so have not checked for AAAA record support.

Use AWS Route53?