Cyberpunk is my favorite type, sci post apocalyptic is a 2nd (not your typical young adult dystopian book I'm talking things like Appleseed and Ergo Proxy).
I think scifi settings like Trigun and Vampire Hunter D are amazing, there is more to their settings than meets the eye.
Vampire Hunter D looks like a typical HP Lovecraft and Victorian London setting at first until you realize it actually takes place 10,000 years in the future and there is advance tech. Apparentely in 1999 a nuclear holocaust happened which wiped out most of the world but vampires were prepared for it. With their advance tech and magic the vampires were able to rebuild the world in their image and become the ruling race. They even created their own substitute for human blood, but they still like drinking human blood. Most of the monsters in that world were not natural and instead created by vampires, very few creatures are actual demons. You see some things that tell you the setting is not what it seems like cybernetic horses, laser guns, and Victorian looking space ships.
If you look at Trigun in the first half of the episodes/chapters it just looks like the wild west with a few cyborgs and power plants shaped like light bulbs, until you learn, that the setting is actually full on sci fi. The main character Vash The Stampede actually has a mechanical arm with a gun that he keeps covered so people think it's a normal arm. He is an energy warping being that looks human which is why he essentially has eternal youth and has looked 23 for over 150 years, and has a ton of powers he rarely uses. The planet they're on isn't even Earth. Earth was overpopulated and quickly depleting in resources so they sent out ships with people on them in cryo sleep so they start their lives on a new planet.
The planet they found had a breathable atmosphere but barely any water and other resources so when they crash landed on it, it is why everything looks like the wild west despite their being tech advanced enough to have cyborgs around because the planet was an arid wasteland. They had to use mostly parts of their crashed ships to build non-stone or wood structures. I like how when they finally show you that it is not Earth they're on its when Vash shoots an energy blast at a moon and everyone points out how he made a hole on the FIFTH moon. It's also revealed that the race that Vash belongs to is created by humans to be used as an energy source to convert energy into electricity, water, and even food. Most of them can't survive out their containers that are shaped like light bulbs.