As seen in my poll, I am really hoping for stuff like “consequences for giving in” or “action based transformation”.
Stuff where you have either some temptation, which when seduced by, causes some transformation or stuff like a curse that causes a small bit of transformation for the most mundane things.
There is one story I really like, where a witch reveals to her boyfriend or husband that she is a witch, is into WG and they agree to have him try it out for a day by causing his steps to add one pound each to him among other things.
Talking about other fetishes, I really like the idea of some kinda pop or idol concert made for the express purpose of softcore femdom mind control.
I just really like the idea of being totally lost in the moment, slowly seeing how everyone else goes quiet, then realizing you yourself cannot make a sound anymore.
This can obviously also be combined with WG.
Another one, as seen in my profile pic right now (slightly chub-buff smug wendys incase I change it later) is fast food chains oriented around making people bigger. What I always like to imagine is a franchise, where the employees get a bonus for the total positive weight difference of their regulars.