I see that some different concepts of "aggressive" are coming up, like "aggressively friendly", "outspoken", and such. So a good question would be if the OP was referring to negative, combatative aggression, which is what I also assumed. FP's for instance are often said to be conflict avoidant. (Of course, they will have reactions as I had said, though it will usually be more of a "pushed in a corner' reaction).
Extroverts will tend to be aggressive in general because of the espressiveness, but it can be either friendly or combatative.