Set up your Hetzner boxes in a European location so that they are in the same network zone. Activate automatic snapshots and Hetzner does 7 snapshots (a full image of your box) a day. The snapshot is never saved at the same location as the server running your box, but at one of the other locations in the same network zone.

I just noticed, with the move to VPS into the "Cloud" section, there apparently are no automatic snapshots anymore. Sad. You can still make manual snapshots or activate automatic backups, which are more expensive. Backups are saved in a different location than your server, too.