Going to get more bloodtests considering my low testosterone (320ng/dl). what else should i check with it? already had lh, fsh, prolactin and shbg tes

Low testosterone: Causes of low testosterone: primary due to testicular injury , genetic, undescended testicles. Secondary:aging , liver/kidney, diabetes, autoimmune,obesity, pituitary/ hypothalmus medications. Medications: alcohol, opioids, SSRIs, tranquilizers, antipsychotics, b blocker, spirinolactone, antihistamines, H2 blocker( cimetidine), statins, steroid inhalers, and lastly stress. Discuss with doctor.