There are several fillers that I like in this area including Voluma, Sculptra,and Juvederm UltraPlus. In your case, combination treatment is probably best. You could use Sculptra to stimulate collagen production and to re-volumize the pre-jowl, midface, and piriform. This could be followed by a hyaluronic acid based filler as needed. I think I would also focus on your skin. A series of microneedling treatments or non-ablative laser treatments such as Fraxel could improve skin texture. Finally, you may benefit from Restylane Silk or Juvederm Volbella injection into the lips and perioral lines.
It seems the main concern might be the lines rather than the volume. You seem to have a fairly strong chin in this limited pictureHaving said that, sculptra to your chin would recruit some of the chin and jowl skin and may make a small improvement. This would inevitable give you a stronger chin however which you may not want. Intradermal filler or other skin tightening procedure might be better for you. Hope that helps. Adam Goodwin