For obscenely cheap and simple, whey isolate and dextrose/maltodextrin.
Preworkout I'll usually rock out a caffeine pill (again, pennies).
You could get a lot more advanced but I honestly don't see the point. Does all the super-duper stuff work? Sure. Is it going to add 50lbs to my BP? Probably not appreciably faster than a solid diet, sleep, and lifting plan.