Can I say something stupid but maybe true: Do you want to be on a domain registrar for whom registration is a loss-leader or their core business?
Like, I like cheaper too, but even just in the last few years I can think of a few "loss-leader" registrars who decided they no longer wanted that division operating at a loss and scrapped it. Google Domains being the most popular example[0], but Gandi[1] is another where they operated at a loss then got acquired with huge price increases.
Disclosure: I'm on NameCheap and AWS's Route53.
I've seen way too many NameCheap alternatives come & go or turn "evil." If NameCheap starts being sketchy or misleading, I'll move, but that hasn't happened yet. I want a rock solid registrar for tens of years, with a business strategy that supports that, rather than saving $4/year.
[0] https://en.wikipedia.org/wiki/Google_Domains
[1] https://en.wikipedia.org/wiki/Gandi#History
