I think you covered it pretty well. Blackgaze and OSDM revival seem like the defining tastes right now. There's been an upswing in free jazz influence as well, I think, and I feel like dissonance is experiencing a surge in both.
Osdm is a very saturated genre at the moment and spectacular quality isnt always needed to become popular. 20 buck spin maybe is the best example as they have a cult following them.