Would be good to have a fall-back solution, is there something similar in dedicated server price in the EU as Hetzner? Or does no on else come close?
OVH had a datacenter burn down a few years ago, so think about that what you will :)
Imo it makes sense to spread out, and have backups with a different provider than the one your main servers run on. They should all over S3, which is a standardized format for easy syncing of backups
There's also Webtropia I have used in the past, also German, without issues.
OVH would be the safest bet but their support is worst than Hetzner.
But it's 1Gbit public and max 5Gbit (Plus double the price)
Do they do dedicated? I could only see cloud and colo on their site.