Check out Blotted Science and Behold…the Arctopus! Anything with Ron Jarzombek (Blotted) and Colin Marston (Behold) should scratch that itch. I don’t have much microtonal in the library but now you’ve got me wanting to dig deeper. I’ll get back to you in a few days!

Otherwise if you’re cool with avant-garde in general I’d also recommend Dodecahedron, Imperial Triumphant, Igorrr, Meshuggah (THE polyrhythm kings), and Unexpect.