family group sheet with wife at the top
In order to achieve this outcome as a report...
Edit > Swap Husband and Wife.
You will need to agree to the gender change or the people will not swap
Options > Customise > View | Default Family View Labels and Reporting > [Edit Default Marriage Wording] Swap the labels as shown:
Alternatively, you can do this from the marriage screen:
Menu: Reports > Reports Menu (Charts) > Family Use this option then [Preview]
When you swap the Individuals to appear in the opposite panels, their genders are changed as well. There is nothing I can do to alter this for this exercise, and is the only negative aspect I can see at this point.