the list ive tried
dymatize (whatever preworkout they make)
and many more
Jacked was the best for me, not super strong in the caffeine department. Just right. Nitroflex is intense, apparently supposed to boost test levels (found out after i paid walking out of the store). Maximize v2 is intense but after workouts i wanna hibernate.
i would stick with jacked. its good stuff, not too tame but not too intense. just right.