Office O365 Migration

Microsoft SharePoint Migration

Microsoft SharePoint Migration Tool
Good walk through using MSMT 2019.3
https://blog.hubfly.com/migration/microsoft-sharepoint-migration-tool-step-by-step-walkthrough
Review of MSMT from ShareGate
https://sharegate.com/blog/our-take-microsoft-free-sharepoint-migration-tool
https://get.sharegate.com/curated-guide-office-365-migration-and-adoption

Blog
https://techcommunity.microsoft.com/t5/Microsoft-SharePoint-Blog/Introducing-the-SharePoint-Migration-Tool-from-Microsoft/ba-p/109767/page/2
Builds – Release Notes
https://docs.microsoft.com/en-us/sharepointmigration/new-and-improved-features-in-the-sharepoint-migration-tool
Check out these great migration tools
http://thecloudengineer.blogspot.com/2013/01/vendor.html

Legacy

Bit Titan Migration Wiz
https://www.bittitan.com/products/
Skykick
https://www.skykick.com/
Thinkscape
http://www.thinkscape.com/SharePoint-Online-File-Migration-Tool/