Scanning, Storage, and Archiving with SharePoint
Many customers are unaware that SharePoint has some excellent partners who specialize in Scanning, Storage, and Archiving large volumes of data. Below, I've listed some of these partners:
https://www.knowledgelake.com/
https://www.onbase.com/English/Products/Integrations/MicrosoftIntegrations/SharePoint
More partners can be found here: