Oooooh, I love a lot of "off the beaten path" masterpieces that you might enjoy.

Blackhat

The Brown Bunny

El Topo

Freddy Got Fingered

Fritz the Cat

Happiness

High Life

The Last Movie

Jack and Jill

Movie 43

Reality

Robot Holocaust

Tenet

The Man Who Fell to Earth

Tim and Eric's Billion Dollar Movie

White Bird in a Blizzard

Women in Cages

Wrong

Wrong Cops

This is just off the top of my head. So many underappreciated classics out there. You just have to be willing to look where critics and audiences say "What the FUCK did I just watch?"