If you want to add something to your test for lean gains, anavar or winstrol would be good options. However, you must be also aware that if you want to get lean gains, you must use the proper ancillaries with testosterone, which is basically an AI in order to control estrogen levels, and consequently water and fat retention. If you will add winstrol or anavar, make sure to be using a good liver supporting supplement, since both are liver toxic, includint the injectable winstrol.
Personally, I would advise you to consider adding in some SARMS into the cycle - they are great for lean gains, and there are no side effects with them.