Backblaze
I use Backblaze for backing up my personal computer and files, which includes backing up my NAS that stores important family data/photos/files to their B2 service. I find it invaluable to have peace of mind that even if I lose my computer or local backup storage device, my documents and data are safe in a separate physical location.
If you would like to try Backblaze to back up your important data, I encourage you to do so using my referral code, which will get you 1 free month of service to try before you buy. If you end up purchasing the service, I will also get an additional free month of computer backup.