Which peptides for keeping muscle mass on an extreme calorie deficit

Pretty much as the title suggests. Currently on an anabolic blast for bulking and when I come off I will sit at maintenance for a month or two before hitting a gnarly cut. What peptides are useful for ensuring that I keep most if not all my muscle gains sitting in at least a thousand calorie deficit? 5’9” currently 185 and 13% bf (taped) I will probably bulk to 220 or 22% bf, whichever happens first. I will likely be using semiglutide, l-carnitine, clenbuterol, hgh, cialis, trt dose testosterone and anavar during the fat loss phase. EDIT: apparently the answer I was looking for was igf-1 lr3