Cloud to SD card (SugarSync alternative)

Hi,

I am seeking advice for good cloud storage app that is able to save data for offline

access to SD card on Android 7?

I have been using SugarSync (paid, because I have 50+ GB to sync) for years.

But it doesn't have this options for newer android systems.
So something similar with this possibility?

Functionality needed:
-Sync between PC, Android, Web access
-Sync to SD on Android
-Ideally able to sync selected folder, not only special one as in Dropbox (but this is not

crucial, if there is not better option...)

Thanks much!