the old primordial performance AndroEnhance was a stack of 11-keto and 4-DHEA - 11-keto is quite androgenic and would work synergistically with the 4-dhea. 11-OXO is the prohormone to 11-keto, so I imagine they would also work quite well together.
Have you considered trying
Ultra Eleven - Iconic Formulations 11-keto gel? This would stack really nicely with just about anything