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That should get you started with some ideas. Some of them are prescription I believe while others are not.
I don't think I know that much about anti-e vs AI, but the ones that I can think of off the top of my head that are not prescription would be: ATD(I think), Formestane, Rebound Reloaded, 7-oxo(I think)...
I really wish I knew more, but maybe someone else can chime in.