pcloud

I’m not much of a Cloud Drive user, but experimented with pcloud. It has a CLI tool and the ability to show up in the local filesystem, so you can browse through with your graphical filemanager: https://www.pcloud.com/download-free-online-cloud-file-storage.html

Free Tier

I only used the Free Tier without time limitation. Just logged in to the web client in browser to see if my files are still there, and I still have my files uploaded 2 years ago. I think Free Tier starts with 1 GB of free space and you can unlock more and more if you do some tasks like installing the CLI tool and such (I have 5 GB of space without time limtations). And the files are stored in European servers; not sure if I had a choice at account creation time or if this is tied to the location where I am.

If you want more space, you can either pay annually or a one time payment for lifetime access (500gb for 200 Euros, 2 TB for 400 Euros…).