For backing up I have a cron job that use rsync to transfer files to a cloud storage location on rsync.net. It's not the cheapest around but it has been 100% reliable. Since I am also handling backups for my family's data, I depend heavily on it. Also, it is standards based so no proprietary clients or any of that nonsense. You have a choice of standard clients like: rsync, borg, sftp, scp, rclone, restix, and git-annex.