my go to is musclepharm "combat" 'cause when it comes to shakes I'm a huge lightweight and I used to fucking throw up all the time after drinking whey. but musclepharm combat has great flavors and I tend to mix them with some banana and peanut butter. but yeah, their stuff is delicious I'd check it out.

if you mean pre-workout I used to take C4 (like one container of it then pretty much never again). the upsides were I had hella energy and I was always super focused during my workout, pretty sure while using C4 my max bench was like 275 when I was working out consistently and about a month after getting off it went down to 250 just because when I do any main compound exercises I usually do supersets of some supplementary exercises in the same muscle group and it wears my muscles out pretty quickly sometimes. so when I was taking C4 I had peak energy throughout my entire workout, it was pretty awesome.

but, when I took it it made my body tingle and I felt uneasy if I was standing still or resting. as if I had to move. those feelings alone made me not buy it again. I might consider using that product again, 'cause it was sick and I was sort of a pussy back then when I used it. I'd be careful with that stuff though, I don't think it's for everyone.