Facial asymmetry is common and can be managed with fillers or implants. A cheek implant and fat injections would give you a good chance at symmetry. Fillers are temporary but allow you to see how things can be improved. Seek out a board-certified surgeon who does both. Best wishes.
Facial sculpting and contouring can be created with well-placed fillers (Voluma, Countour, Radiesse, Bellafill) and Sculptra, which would give improvement in facial balance. Fat or implants are alternatives. I recommend getting a formal evaluation with a facial sculpting expert. Best, Dr. Emer
This is my expertise and a huge portion of my practice. Asymmetry is normal and expected. Buccal fat pad gives slimming not symmetry. Masseter botox will make you slimmer and make the jawline more loose. Fillers help give shaping and contouring. If you want perfect or close to perfect symmetry...