Best preworkout i've tried was jack3d, but that shyt gave me stim dikk one time so i was like
fuuuuck this. I've heard Craze is pretty much the same thing.
C4 Extreme is pretty good tho. I've tried Assault by Musclepharm too, which was aight. (both recommended to me on this forum)
I tried White Flood and NO Xplode samples but neither worked for me for some reason, despite the fact that both are very popular and many people swear by them. So maybe not everyone is gonna react the same.
Just remember to cycle off preworkouts cuz your body would build up a tolerance. Maybe somethin' like 8 weeks on, 4 weeks off would be a good general rule to go by.