I am seeing a facebook developer which already have an app that pages can add in to see who are their top fans on their page and engage/comunicate with them.
Basically the fan who comment/like the most. Similar to https://www.socialappshq.com/products/top-fans-for-facebook-pages
It will just display a list of the Top 10 fans. Duration can be such either weekly or monthly.
Awards and badges are bonus .
You should have the source code and provide a demo url .
If selected i may request that you integrate it with an existing system.
Do not bid if you not have a viewable demo link available.