Rangers are able to select favored enemies and favored terrain as part of their class features.
Inquisitors also choose an enemy type for their Bane feature.
Below is a list of the favored enemy types on the left, and the creatures included in those types on the right.
aberrations --------: beholder, illithid, mind flayer, aberration\\
animals ------------: snake, serpent, warthog, jaguar, wolf, rat, tiger, reptile, dinosaur, dino, spider, deer, snake, horse, mare, stallion, animal\\
constructs ---------: construct, golem, sandman, sandling\\
dwarves ------------: dwarf, dwarves, duergar, construct\\
dragonkin ----------: dragonkin, kobold, draconian, dragon, elven-dragon, dragonet, pseudodragon, drake, wyvern\\
elementals ---------: elemental, genasi, earth genasi, air genasi, water genasi, fire genasi, efreet, djinn, marid, genie\\
elves --------------: elf, elves, half-elf, drow, half-drow, szarkai\\
fey ----------------: nymph, satyr, dryad, pixie, brownie, feytouched, fey\\
giants -------------: voadkyn, firbolg, giant, titan, troll\\
goblins ------------: goblin, bugbear, hobgoblin, goblinoid\\
humans -------------: human, shade, half-elf, half-orc, half-ogre, half-drow, genasi, feytouched, aasimar, tiefling\\
lizardfolk ---------: lizardfolk, yuan-ti, saurian, salamander, lizardman, firenewt\\
magical beasts -----: owlbear, grimlock, jackalwere, wolfwere, ooze, worm, pegataur, griffon, hydra, shadow, magical beast\\
monstrous humanoids : monstrous humanoids, beastkin, wemic, centaur, ratkin, minotaur, gnoll, kitsune, werewolf, wererat, weretiger, alaghi, monstrous humanoid\\
ogres --------------: ogre, ogre-mage, half-ogre, ogroid\\
orcs ---------------: orc, half-orc, orog, tanarukk, orcoid\\
outsiders ----------: deva, solar, aasimar, angel, demon, devil, imp, tiefling, githyanki, githzerai, outsider\\
plants -------------: plants, shambler, shambling mound, tree, vine, plant\\
smallfolk ----------: gnome, halfling, kender, derro, pech, smallfolk\\
undead -------------: ghost, skeleton, lich, zombie, ghast, entity, spirit, undead, wraith, wight\\
See also : Favored Enemy, Favored Terrain, Ranger, Bane, Inquisitor