@Iyamayakwrites
Tristen is a flirt and a womanizer like Kol (not that Damon isn’t), but Kol, Elijah, and Klaus are an actual trio—when they aren’t fighting, of course.
Asher has that silent but even deadlier vibe (which has been stated multiple times), much like Elijah. Since we don’t know much about him yet, I won’t assume he’s like Kol based purely on a ‘feeling’.
Brian, on the other hand, is definitely the take-charge, must-be-in-control type, just like Klaus.
Plus, they have that trio dynamic, which reminds me of that iconic scene from The Originals (3x22) when Kol, Elijah, and Klaus did their unforgettable walk.