i tend to have a much higher chance of something being good with
-funeral doom
-noise rawk
-dream pop/ambient pop
-jungle
-techstep
-slam
-black metal
-post-ponk
-minimal wave
-techno (not ambient techno)
-breakcore
-speedcore
-gabber
-happy hardcore
-shoegaze
-ethereal wave
-art pop (MUST BE JAPANESE PLEASE UNDERSTAND)
-ambient
-j-rock
-liturgical music (don't actually know what makes it different than other early classical, but every recording i've heard is sick)
-psych folk (the more modern kind, not the boring hippy 60s kind)
there's some genres i don't care about much on their own, but combined with another thing they're usually pretty great. like synthpop + post-punk/minimal wave/darkwave/whatever other one of those genres, and trip hop + dream/ambient pop, drone metal + sludge/doom, jangle pop + post-punk, psych + post-punk, but can't think of enough to add another section to the list. tried to think of more things that aren't either rave or Rawkin' also but couldn't. oh well!
also i tend to avoid anything released in the past 5 or 10 years that's internet-y looking otherwise shoegaze and breakcore wouldn't be here