Use Copy structure and content to migrate content types from the source to the destination.
For more information, see our blog article What are SharePoint Content Types? Learn How to Create and Use Them.
Note: you can only migrate site content types with this feature. To migrate list content types, You must migrate the whole list or library.
Index
Prerequisites
You have site collection admin permissions on your source and destination site collections.
You have term store admin permissions on your source and destination if you have managed metadata (Terms, Term sets, Term set groups) in your migration scope.
Note: Site collection admin permissions are required even if you have higher admin privileges like SharePoint admin or global admin permissions. For more information, see Microsoft administrative permissions.
How-to
Select Copy from the sidebar.
Select Copy structure and content.
Click Connect.
Select your source.
Click Next.
Click Connect.
Select your destination.
Click Next.
Select Content types from the list of Site objects.
Select the content type(s) you want to copy from the source.
Drag and drop it into the destination, or click Start copy on the bottom-right corner.
Once the action is completed, the migration report will show any successes, warnings, or errors. See Migration Report for more details.