Do I have a weak chin, bimaxillary protrusion, both, or something else? (Photo)

If you are mainly concerned about cosmetics, then a chin implant of genioplasty would help balance your lower face. This surgery would give you better chin projection and balance. It will not change your bite or improve your masticatory function.

To get a formal assessment, requires an examination and for some providers also including radiographic evaluation. Based on your pictures, it looks like you have mild hyperplasia of your malar eminence and mandible. Your palate as appropriate forward projection but I’m guessing do you have a moderate overbite occlusion.
Mailer augmentation can be done with a painful icing with a variety of procedures, including implants, fillers, craniaofacial surgery or even a mid-facelift(older procedure less popular today). The indication for chin augmentation should be based on an assessment of the mentalis region of your mandible(both vertical and horizontal) augmentation of the mandible can be done using implants, sliding genioplasty, or Fillers. A really talented provider could probably give you incredible outcome, simply using fillers though getting a proper outcome will use up significant amounts of product. Fillers have the amazing ability to give real results without significant risk or commitment. It may be a good place to start?
Check out the website Dr. David Mabrie MD in San Francisco. He has lots of very impressive before and after pictures on his website. He is a facial plastic surgeon who’s career is focused on only working with fillers.
To get a more accurate assessment and better understanding, approving options consider having multiple in person consultations with cranial facial surgeons in your background. You may want to consider consulting with both plastic surgeons and oral surgeons. oral surgeons typically tend to be more facial skeletal based in their assessment and treatment plans. plastic surgeons are often more focused on soft tissues. Both specialties contribute significantly to facial aesthetic surgery.Best,
Mats Hagstrom, MD