I ditched Google Suite. Sadly Proton is not really cutting it for me, mostly because of the bad drive state on phones. Yes it will and can change in the future.
But are there any complete viable (and payable) options atm with a good backup app for android?
Stay safe! 
Hi there, @HectorB! 
In order for us to be able to recommend something that may fit your needs, would it be possible for you to provide us with some more information about what exactly you want from this “suite” of apps?
Do you need the kind of services that Proton provides (Mail, VPN, Calendar, Cloud Storage) or something else?
Without having too much context, maybe you could look into Cryptee?
Looking forward to your reply!
I am not aware of any other company which is actively building suite of products apart from Proton and Skiff (warning: Skiff is not recommended or reviewed by PG Team). The other recommended product (Cryptee) doesn’t have a native android app which can sync in background and they only allows uploading selected type of files to be uploaded, so I don’t think it will satisfy your requirement. From my limited understanding, I can recommend other products with decent Android app, but they are not reviewed or recommended by Privacy guide team.
– neeraj_dev