I tried OneDrive, Google Drive, Box, Dropbox, Azure File Storage and they are all just for handling excel files?!?!??!?!
I know there is Azure Blob / Data Lake but, it would involve a lot more security that is already done with OneDrive. This kind of service is not as user-friendly as Onedrive too. The other big problem for me is that Blob/ Data Lake / Sharepoint Lists are too granular in the way they store information. I would like to be able to easily see the files uploaded recently.
I know it's a recurring topic but I still have hope...
PS: I currently use a custom connector but, it's not a good solution since it requires all the connectors to be in the non-business data group. You can see the idea here to make it possible to transfer custom connectors in business groups.