A combination of good pricing, sane behavior and an offering with many TLDs right now is https://www.netim.com, based in France. Their UI is quite outdated, but it works ok. I've switched here after leaving Gandi.

If you're fine with a US-based provider, https://porkbun.com/ also has good pricing and a tech oriented mindset. They don't support many ccTLDs though.

In general, https://tld-list.com/ is the best place to research domain registrars in my opinion.

I am fairly happy with Bulgarian company ClouDNS, they have a wide selection of ccTLDs for reasonable prices. https://www.cloudns.net/