This is my own terminology here, but the rad category is for the instro bands that thrive on adrenaline. Moreso than the other categories, a lot of these show punk and metal influences. It also rhymes with trad, and I like it more than "aggro".

Honorable Mentions

After 65 million years of nothing productive, then a few years of a promising demo on bandcamp, these Dinosaur Ghosts have put out an album. And I'd reckon it was worth the wait. It's savage! It's got bite! And there's a fun cover of Salt-n-Pepa's "Push It" too.