What would be the best procedure to correct my "turkey neck"?

A true lateral is taken with the shoulders square with the face. When you twist your head to the shoulder, it tightens the skin and distorts your anatomy. Based on the photos provided, it doesn’t look like anything is necessary. Please submit different photos.

Chin liposuction helps reduce the bulge under the chin and can be done for the whole neck. Once the fat is removed the skin can become loose and saggy in some cases. It can be avoided by combining it with Thermitight which is a radiofrequency heat delivered under the skin to tighten it. Both chin liposuction and Thermitight can be done at the same time. The recovery is fast and it can be done under local anesthesia.
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Regards
Dr. J

Much more information is needed, such as a full set of facial photographs from all angles in a chin neutral position looking straight ahead. It's impossible to tell from these pictures what's causing the issue which can be skin, muscle, or fat. Also important to know your age