You want a serm as the base of your PCT. Its the most important part. As far as anti-e/anti-aromitase's go, your best off going the pharmaceutical route. Do some research, or ask in the anabolics section.
As far as OTC goes; I've always used Sustain Alpha to keep my estrogen in check, but it does so much more than just that: Test boost, increase nitric oxide, elivate mood, imcreased sex drive. And there's bloodwork going all the way back to the Primordial Performance days. I actually run Sustain Alpha year around @ 5 days on and 2 days off.
Sustain Alpha will be returning to the market, under the Iconic Formulations brand. Perfect for me because I'm down to my last 4 bottles from when BPS discontinued it.