Not an AAS but GH... It just gives a totally different look that I really enjoy, within weeks there’s no option but being very vascular, a very lean “pop” to the muscles and not to mention the leanness in general, sub 10% bodyfat the whole time and dare I say around 7-8% bodyfat with no effort...
If it has to be an AAS then I’d say NPP or Primo...
Depends upon goal and willingness to feel crap for the sake of results.