This Seeking Tech video guide will show you how to get the Fan Club Savior trophy and achievement in Crisis Core: Final Fantasy VII Reunion.
This will unlock when you do the following:
Helped every fan club continue their activities.
This needs to be done before the end of Chapter 7. Make sure you join the Red Leather, Loveless Study Group and Keepers of Honor clubs first before starting the quest.
You can check out the video below to see who you need to talk to: