Oh you watched both huh, that' a brutal double bill lol. Yeah Bone Tomahawk is pretty nasty.
I'd recommend checking out some of Cormac McCarthy's books (he wrote No Country...) but he has quite an odd writing style which even some native English speakers struggle with, and I have no idea of the existence or quality of Portugese translations. Maybe check out a film called The Road which is another one his stories, it's a post-apocalyptic film and is also very good.
Also, the Cohen brothers other films are mostly great, although they're not all in the same vain as No Country.
S Craig Zahler who directed Bone Tomahawk also has another film on Prime called Dragged Across Concrete, which is also a good watch.
Sorry for essay lol.