Hopefully your ok with simpler palettes because I tried with going with one
Likes:
Stars/space things
Dark colored things
Glowy things
Ocean themed things
Sunset themed things
Blues and blacks
Dislikes:
Eyebleed (almost always)
Really pink things (I'm ok with a bit of pink just not the entire thing and I prefer softer pinks if your going to use it)
Really girly things