Are there alternatives to jaw surgery that can help target the top lip and chin? (photos)

You have a vertical facial growth pattern and the 'width' of the jaw is quite tapered. The ramus/back of the jaw is also short and narrow which makes the chin and face look longer. The answer is to augment the ramus, and establish a natural jawline both from the front and in profile.

Yes, the genioplasty will improve the contours quite nicely. The advancement of the 'chin' will also assist to 'flatten' the area 'under' the chin.

There are different surgeries and different approaches which could "fix" your profile. You have experience with fillers, so you more or less know what those can do for you. The first thing that needs to happen is understanding your exact needs, likes and dislikes. Custom Implants could be a good...