Unforrtunately, the one photo provided does not show the neck region nor the region of the chin and jawline, all of which could be better evaluated front both frontal and profile view photos. In general, however, appropriately selected and properly injected HA fillers can work well for shaping and contouring the mid and lower face, as well as improving a saggy neck. Threadlifts generally do not yield results that last longer than fillers and have a high rate of adverse reactions that include infection, dimpling and divets the skin and even :spitting out" of the sutures. And despite the intense marketing and social media hype surrounding all kinds of expensive lasers and other energy-based gizmos, the hard science to promote their use unfortunately well behind the hype to promote them. You would be wise to consult a board certified experienced cosmetic dermatology injector and be sure to ask to see his/her personal before and after photos prior to agreeing to proceed. Best of luck.