The problem here is that on SARMs, you will eventually suppress your HPTA, and then you will have androgenic activity from the SARM while you are deficient in estrogenic activity. This sounds like a good thing, but it’s not. Estrogen is not optional, and SARMs just don’t aromatize. For your purpose, RAD-140 is often what is used, but I would recommend looking into other options. Depending on what you want, you could support your natural testosterone production with enclomiphene and other compounds, or you could just bite the bullet and use real steroids, like Guido suggested above