Best place to back up the Plex server (including content)


I'm looking for places to save my Plex server (including content) online.
I would need about 4-5 TB of space right now and somewhere in Europe.

Where would be the best place?

There would be no streaming from the server, it would be enough to download and store the files, in case of an event or a problem with my Plex server at home, that I use for personal purposes and I lock on my home network.