The default storage provided by Salesforce is very limited, but a Salesforce native app FileZIPO integrates your org with the external cloud storage platforms, viz., OneDrive, Amazon S3, Google Drive, Dropbox & Box.com.
Visit - https://filezipo.io
9. File ZIPO also offers advanced filters, extensive file
records, user tracking & much more to facilitate
efficient management of Salesforce orgs. All this at
much lesser than the standard Salesforce storage
cost. So, what are you waiting for?