Supplement Beginnings

I am a college student, I have been lifting for roughly three years and I am trying to put on as much lean muscle mass as possible. I am 6’0" weighing 200lbs. I just want to keep getting bigger. I feel that my Wheybolic Extreme 60 protein, Cellmass, and Kre-Alkalyn are working well, but I was just open to any ideas for what else I can do. I have a chest day, shoulders day, legs day, a back and biceps day, and an explosion day (usually cleans, abs, etc) and then a rest day.