What to add to TRT

New to steroids and have been on Trt for 6 months, was thinking of adding something but not sure what to cycle. I'm currently on 200ml 2x a week.

Edit: thank you everyone i just realized I'm an idiot who misread his label. I'm on 200mg/ml at a dose of .375x 2 times a week so 150mg a week of test C.