There's too many humans in these novels I read. Gimme someone who isn't and I'll be eternally grateful.
zombie evolution Tensei Shitara Slime Datta Ken theres also one about this mc who turned into a monster(something like a minotaur like beast) because of his cultivation method. forgot the name though.
Re:Monster(manga) Reincarnated into a sword. Reincarnated into argentino the vampire. Reincarnated into hot spring Reincarnated into vending machine. Take your pick.
Overlord, Gob Tensei, Re:Monster, reincarnated into a werewolf, Yuusha no Furi mo Raku ...(if gods count as nonhuman)
A Monster Who Levels Up Technically he isn't a human, but his soul is a human and he's trying to go back to be a human again, little by little.
Overlord Crimson Dragon (unfortunately dropped, but one can dream) Strange Life of a Cat Cthulhu Gonfalon The Death Mage who doesn't want a fourth time
Breakers (he is a some sort of demon, thought it is still much like human) Evil Dragon Reincarnation ~Even If I Am Reincarnated into the Other World I Am I~ Skeleton Knight, in Another World I Reincarnated Into a Vending Machine Panties Reincarnation. I’m a Pair of Panties, so What?
Dungeon Defense fits your bill And if u meant novels where they don't think like proper humans most xianxia fits your bill