Freespace on these
OneDrive: 5GB, 50Gb for 1.99/mo. Biz plans get 1TB per user.
Dropbox: 2GB, 1TB for 8.25/mo
Google Drive: 15GB, 1 TB for 9.99/mo
To Map a cloud service to a drive, consider:
http://southrivertech.com/products/webdrive/download/
from how to geek
http://www.expandrive.com/map-google-drive-as-a-network-drive/
AND consider this good client, which can help mount:
http://www.cloudberrylab.com/map-google-cloud-storage-network-drive.aspx
This page suggests using a storagemadeeasy.com account, and then mapping.
http://superuser.com/questions/877058/map-google-drive-as-a-windows-7-network-location
The SUBST solutions:
If you have the Google drive product installed, then you shall have a special folder in (example) c:\users\Joe\GoogleDrive and you can SUBST a drive to it. Many articles.
And note, there are severe Windows 10 and OneDrive problems, as the syncing and updating of folders does not occur as it did with Windows 7 and 8.x
https://www.thurrott.com/cloud/microsoft-consumer-services/onedrive/3638/onedrive-tip-map-your-cloud-storage-as-a-drive-in-file-explorer
And thinking of using Syncback with Google..Cloud? One can, but read:
https://www.2brightsparks.com/bb/viewtopic.php?t=9825
