I run restic with rclone, which is not only compatible with S3-like storage (which include many, like Hetzner, OVH, Exoscale) but many others, from mega to pcloud through Google Drive.

For stuff I care about (mostly photos), I back them up on two different services. I don't have TBs of those, so it's not very expensive. My personal code I store on git repositories anyway (like SourceHut or Codeberg or sometimes GitHub).

Yep, I was wondering which services people would recommend. I had been thinking about B2, I just haven't prioritised it.