I can certainly recommend a few, there are loads of brilliant games on this site. These are some of my favourites.
The Weighting Game - WIP - Projects - Weight Gaming
Gain of Life: A weight gain life simulator [v0.50.0] + New Free Version - Projects - Weight Gaming
Fattening Career - 3D weight gain visual novel (0.10 released for Free!) - Projects - Weight Gaming
Big Aspirations (DLC Bundle 1) A weight gain interactive story - Projects - Weight Gaming
The Sultans Harem 
- V0.6 on Patreon / V0.4 on itch for FREE - Projects - Weight Gaming
The Queendom of Corpula: A Weight Gain Visual Novel v0.5.1 - Projects - Weight Gaming
If you’ve already tried all these, then you sir have good taste. 