Would chin fillers reduce my pronounced chin? (Photos)

Chin filler definitely is NOT going to be the answer here... at least until you try some other things. From the side pic, it looks like your chin is significantly in front of your dentition/bite, which is a bit unusual. When it's like that, I usually find that the actual issue is not your bony chin but the soft tissue in front, which is almost always the mentalis muscle as a big contributor. If that is the case, doing high dose botox can help to decrease how much the mentalis is bulking up (similar to masseter botox for facial slimming). I

The use of fillers directly for the chin would likely only increase the projection. By contrast, elevating and smoothing the "mental crease," (the horizontal deep furrow between the bottom of the lower lip and the chin) using an appropriate HA lifting filler would immediately lead to the appearance of a less prominent chin. Likewise, adding volume to the upper and lower lips, which appear thin in the photos, using a medium viscosity HA filler, would help to balance and harmonize in profile the projections of the chin, the lips and the nose. You would be wise to consult with an experienced, board certified cosmetic dermatologist filler injector. Hope this helps and best of luck.