I'm personally not a huge fan of the quintessential 'gross' style of breakcore – that is, Shitmat, Igorr, DJ Skull Vomit, Bong Ra, etc. Dudebro breakcore, basically. Remniscient of dubstep, in terms of nastiness (I mean that in a bad way). I don't care if they're popular, they just don't resonate with me at all. I'm much fonder of the pensive and introspective styles, often sad, sometimes anxious, or sometimes very high-energy speedcore-esque crossover tracks, such as Slavik Goblins by goreshit: https://goreshit.bandcamp.com/track/slavik-goblins
But contrast the above track to something slower and more melancholy, such as Vida, which is the video I embedded with this post.
I feel as though the aforementioned style of, well, navel-gazing breakcore, helps convey more complex emotions, delving deep into the darkest reaches of the human psyche, whereas speedcore-focused stuff is just simple, raw energy. Engaging, yet one-dimensional. I'll occasionally blast out my eardrums to it, sure, but it's not my favorite. And it's really not indicative of what the genre is all about.
I'm also not that keen on the anime imagery that often comes with breakcore, but I guess it's just something that comes with the territory. Odaxelagnia, a Polish breakcore duo, churns out excellent tracker-based breakcore albums, though with questionable album art. Here's a great Odaxelagnia track that doesn't have a dodgy album cover: https://odaxelagnia.bandcamp.com/album/sour
4lung is another interesting up-and-coming Bandcamp/Patreon era breakcore artist (as opposed to old-school 2000s breakcore), with their defining fusion of multiple drum-centric genres, most notably trap and footwork – in addition to breakcore. The end result is a more palatable and danceable style that is more accessible than a lot of really harsh and impenetrable music deeper in the genre.
Another interesting multi-genre artist is CDR, one of the most prominent Japanese breakcore artists known for his unique acid breakcore: https://cdr1234.bandcamp.com/album/7-200
Some other Japanese breakcore artists worth mentioning include shako-pani, y=0t (Post too long. Click here to view the full text.