[ska]

I don't know much about them, but Sync https://www.sync.com seems to be in this space.

Has a 5GB free tier, higher tiers cheaper than dropbox. Based in Canada if that matters.

[Doubl]

I'm using them for years as a form of backup. Very reasonable priced, works flawlessly for me though I mainly use as a form of backup for a synced folder. GDPR compliant.