I'm a huge fan of the tone poems of Claude DeBussy...
La Mer, Clair de Lune, even
Golliwog's Cakewalk is good for a laugh!
Almost any arrangement of his work, from simple piano to the reckless synth flash of Isao Tomita, all good.
Big go-to's:
A night on Bald Mountain by Modest Mussorgski, particularly the arrangement by Stokowsky where he went to Russia and got Mussorgsky's original scores before what's-his-name got ahold of 'em and prettied it all up...the original, as Stokowsky finally presented it in 1974 will
scare the crap out of you!!
Also, the Leonard Bernstein version of George Gerschwin's
Rhapsody in Blue... an absolutely definitive version!

Bernstein conducts
and plays the cool piano parts, too!
There's lots of great music out there!