I wanted to renew some domains with Gandi yesterday, and noticed that their prices increased a lot this year. This Reddit post is the only article I could find about it.

.com/.net/.org/.dev are all around $40/year to renew now, up from about $25 six months ago.

https://www.gandi.net/static/documents/PricesList_USD_2024.p...

Cheapest .com renewal is $9.49 (at cosmotown.com). I think for domain registrations/renewals you should just always go for the cheapest one (of course making sure it's not a scam and there is some basic customer service).

I'm maintaining a tool that focuses on domain name renewal rates, have a look if you're interested: https://dot.bs