Any specific models you’d suggest?

How much are you storing on Backblaze? I love their Desktop Backup, and I’ve got about 20TB backed up with it. But I’m planning to add a significant amount of additional storage on a new machine and I worry that their unlimited plan may not actually be unlimited. I’ve heard good things about their B2 service but the cost would astronomical, way way out of my budget.

edit: Oh, apparently Backblaze Desktop doesn’t support Linux. Well, I’m hosed. Got any suggestions for affordably backing up a significant amount of data on a Linux PC?