I just saw your pic. I would never think you had low t as I think you look really good. Wish I had your body.
Anyway…
I got the testosterone prescribed and just injected 2x a week. Dr did not know. He just prescribed the Testosterone. When Dr wrote labs to get I often write down other tests I wanted. Drs are so busy when they get results backs , they don’t even think “oh I did not order that”. If lab asks who wrote that in just say the office.
At your age you may try clomid 25 mg ED or EOD. And see what response you get. I tried that am 41, it helped somewhat but not enough probsbu because of my age. Clomid should def increase sperm count , and load I might add 
, and maintain fertility.
If you call a compound pharmacy, a busy one, you can ask them which Dr prescribes lots of trt medication. See if they give you names.
There’s one called hallandale pharmacy in Florida. I can not vouch for them but I do know they make HCG.
Have you seen Finding a TRT Doc