Yep. 8 is probably the most common type for ENTJs (and ESTPs and ESTJs) and to a lesser extent INTJs (though INTJs most commonly tend to be 5s). That and 3 are common for ENTJ

8 and ENTJ pretty much go together like peas and carrots. If you were like a 4 and an ENTJ- then... well that would just be odd/uncommon.

8s arent always aggressive- they can get a bad rep for that- but they usually ARE outspoken. 8s can actually be really protective of the people that they care about- in a “I will defend those who cannot or will not defend themselves”. They arent always like that, but sometimes that enneagram gets a reputation for being a bully/being pushy- when really, there is more to it than that.

They are usually very dynamic people who have a strong will and are not afraid to seek out what they want.