The video I’ve ended nights far over others is Nogami Izumi (Endurance Round), made by Vanilladj_nsfw and scripted by Moka45 available on faptap.
What makes this one special, apart from the art style, is that it only includes one track looped (primitive - richard vission) that has a steady and simple beat, with possibilities for some variations and vibrations. You have to try it to know it.
I’ve been trying to find similar videos for a while without luck; even Vanilladj_nsfw other videos sound more “chaotic” for my needs for this specific idea.
If you have good ones to link, I would love to take a look at them 
Minimum length: 10 minutes. No IRL content.
