/lit/ - Literature

Recommend me some books like Attack on Titan.
No I don't mean books with shit endings.
Stories that include,
>a thriller atmosphere with a focus on mystery and conflict
>worldbuilding that isn't boilerplate scifi or fantasy
>a large cast of characters which get decent development, with conflict among them
>a strong sense of drama and building characters at pivotal moments
>strategic and political maneuvering
>some scifi or fantasy elements, but not ones which direct the core of the story solely by their existence
>a main conflict that is intractable
I've been recommended The Book of the New Sun series before, but I don't know whether that's just a meme or if it's actually in this vein.