Can someone give me some advice? I am going to build my first rig and plan on having 6 GPU's. I am planning on mining etherium and other alt coins, basically whatever I can mine to make me money.

I was thinking of getting 1060's because I heard they are the best model for ROI, but I don't know what brand to get? I would like to place an order today or tomorrow for them and I am willing to switch to a different card if it helps.