if we talk about hrt/trt only, the use of AI should not be contemplated.
a testosterone replacement should bring your value into the natural range.
in a natural way the body regulates dhtestrogen, free test and all the rest.
therefore you shouldn't need to use anti estrogens as these should also be in the natural range.
obviously if the dosage is appropriate to replace nature, if instead we talk about making cycles, or "strengthened" trt then the discourse changes.