Here is a proposal for your request:
1. Copy the local data from your folders to OnDrive
2. get all users machine and OneDrive links
3. Repeat the same
I would like to do the project perfectly in time and not in a hurry burry.
I like using PowerShell and SharePoint and below are some of the real time uses of PowerShell with SharePoint:
1. Breaking Inheritance for all subsites using PowerShell
2. Create a Table Report for sites unused more than 60 days.
3. Using PowerShell to make the Slideshow work in SharePoint Online
4. Using PowerShell to create CSOM code that manages Taxonomy, Sites, Users, Lists, Field etc
5. Using PowerShell single RESTCrud code that allows you to do various CRUD operations on various SharePoint objects.
I am exploring almost the entire SharePoint Object Model and sharing them to few.
I am looking for one client for long term who can give innovative requests that uses PowerShell and SharePoint.
If interested, let me know.