Peptides vs test cycle

Hi, theoretically speaking, would it be more beneficial for 19year old male to do a test cycle, possibly with sarm to boost the cycle potency even more, or to do a peptide stack?
like 12week test, 6-8 weeks ligandrol or andarine (or maybe anavar) - or 12-14 weeks of kisspeptin-10, cjc-1295 with DAC, ipamoreli? talking money, health, effects and overall - wise. theoretically no major issues with health, parents both had thyroid issues (father would've had it completely cut out and mother would have had iodization, both because of hyperthyroidism). Sleeping 7-9 hours a day, weightlifting workouts 4-5 times a week, counting calories (macros in general), 84 bw 11%bf, 187 height, everyday taking glutamine and creatine,long term low test levels (around 300-500 even during puberty, after hospital tests no issues would be found). already taking noopept, semax, selank, lions mane and methylene blue when it comes to other 'experimental' substances, but he would stop taking them before hopping on gear, if it ever happens (he would have important exams in about 5 weeks, after that he would end his 'cycle' of nootropics). goal for him would be to achieve great physique while trying to maintain long term health as good as possible. he would know he was nowhere near his full natural potential but would be tired of being mediocre (still better than most of his friends that would be theoretically working out too) tell me what would i be supposed to tell him? would there any better substitutes to substances mentioned (if so dms open)? all talking theoretically, no real nineteen year old male involved.