What's left out there right now?
Base nitrogen boosters:
Dermacrine, Epiandrosterone, 4-DHEA
AIs:
Sustain Alpha, maybe the compound in Erase (but I don't think it's very effective at reducing estrogen), RES 100
Others:
Ostarine (SARM, but safe difference basically)
11kt
11oxo
Talking legal options here.