[Outsider]

...
And i've found that all the well-known dht blockers as saw palmetto, pumpkin seeds, pygeum, red reishi mushroom, reduce aromatase.

So it would be counter-productive taking white peony with some of these dht blockers, right?!
The only herb that seems not to be counter-productive taking with white peony as a dht blocker is actually white peony that seems to work as 5-alpha reductase blocker as well.
...

Those AA's you listed don't reduce aromatase, I'm not sure where you got that info from.
-edit- I was wrong, so disregard what I said about none of them reducing aromatase -edit-

---------------------------------------------------------------------

BO isn't an herb, but it causes aromatization, so d-aspartic-acid might potentiate the effects since the free T is converted to E. Though that might be too aggressive a combination.