Sci-Fi. While it's very vast, it often shows a world where society is generally better. Diseases are cured, there's devices that can do so many cool things to make life more convenient or a better escape, and lots of societal issues are fixed because we as a species have gone past such "silly" things. Think of Sci-Fi like Star Trek where there's many Utopian qualities to it. Food, resources, wars (within humanity anyway) are mostly gone, etc. They can just focus on things like exploration. Of course though there's also the opposite where things become dystopian instead such as in the case of the whole Cyberpunk genre or shows like Black Mirror.