From memory, OVH and Scaleway are similar to Hetzner

Hetzner is actually somewhat reliable, and OVH is not.

I know that they had a huge oopsie with their wooden datacenter burning down but apart from that I didn't notice any problems recently.

OVH is more expensive

And tells you in an FAQ to go to a competitor if you want to send emails (personal or commercial does not matter). Various bugs in the ordering systems too. Domain names run smoothly (fast and cheap) once you got the payment systems dealt with but for servers it doesn't seem great

Are they though? They have their KS, SYS and RISE lines with slightly older hardware. The prices are not too bad, I think. https://www.kimsufi.com/en/