@somegirlprivacy Hi 🙂 Basically everyone recommends Backblaze[1] (see prices[2]) with Duplicity.
Guide: https://help.backblaze.com/hc/en-us/articles/115001518354
You can also use Restic[2] and rclone[3].
[1]: https://backblaze.com
[2]: https://backblaze.com/b2/cloud-storage-pricing.html
[3]: https://help.backblaze.com/hc/en-us/articles/4403944998811
[4]: https://cetteup.com/28/how-to-set-up-an-encrypted-sync-backup-to-backblaze-b2-on-linux-ubuntu-16-04-18-04/
@edgren Thanks i will check on that (the online is for the "offsite") the usb key i ask is because i do host myself my password manager (vaultwarden) so i do need a secure way to store my encryption key (of my backup) and my id to access this offsite backup in case of total loss (all hardware).