So, there’s the obvious choice, Weird West, the rpg based on the ttrpg of the same game, with an isometric style, a focus on player agency, and gothic horror overtones, it’ll probably be the closest you’ll get

Then there’s West of Dead, which is a roguelite, with western elements. Like, you die and come back in a saloon, fun as a game on the nintendo switch

The rest that I know off aren’t really rogue lites.

There’s Evil West, which is Weird West, but an over the shoulder shooter, and you’re out there killing vampires.

Then the ol’ reliables, being the Red Dead Redemption games.