OVH (french) is very well known and I like them a lot. Used them for domains a lot, because they are very cheap and their management is nice. I also like very much ScaleWay (french also) for price and quality of service, have used them for years on my startup, can highly recommend. Also heard a lot of good things about Infomaniak (swiss), but never used them myself.

Would love to hear about european cloud providers with comments from users.