I'm planning to look into https://www.storj.io/pricing (150GB free if I understand this correctly) for my own backup needs. You could theoretically host your own node somewhere on a cheap VPS, get credits and pay for your own storage? Not sure - I myself have to do some research.

Then you'd need a fronend capable mounting Storj and they seem to have pretty good documentation.

Again, unaffiliated, and not tested (yet)

Another alternative - pay google (https://one.google.com/about/plans) via a VPN in Turkey and you have 10TB for about 20USD a year. Make the files shared and there you go.

Oh and: I'm very sorry about what's happening in HK the last few years. I still hope the process is reversible.