Hi, I have performed many facial shaping procedures, including Chin Augmentation with dermal fillers or silastic chin implants, for over 30 years. From the photos, your chin is very weak. When the chin is weak, this creates an imbalance making the nose appear larger, the mid face top heavy, the lower face looks short, de-emphasizes the lips and allows early formation of a "double chin". Proper placement of a silastic chin implant adds forward projection to the chin thereby creating harmony and balance to the lower face. Using the same incision, liposuction can be performed to reduce the fat and further shape the neck. Excess skin, from below the chin, can also be removed through the same incision. I have found that placement of a silastic chin implant, through a small curved incision under the chin (also allows excess skin removal) to be very safe, quick, highly effective and far less invasive than a sliding genioplasty. I perform chin implant surgery in 30 minutes or less, often using a local anesthetic alone. In my opinion, you are a good candidate for chin implant surgery. You should consider chin implant surgery before doing any of the other procedures that you mentioned as none of these will add forward projection to the chin and as such can't correct the weak chin.Hope this helps