Gyno is caused by high E2. If you lower the E2, there’s a good chance of the gyno reducing.
Some people think clomid causes gyno. I’m personally not convinced. You are getting great results from clomid, i’d be loath to change to nolva. That said, people react differently to drugs…
I think addressing your E2 directly is the best route, but we all choose our own paths. Do your research and go for the best course of action.
BTW, reading the thread on how to microdose AI could be relevant to you. It’s very easy to crash your E2, small steps are warranted.