I'm écriture a novel on mythical creatures and I need help with picking one. So far I have: Vampire, Werewolf, Fairy, Demon, Dragon, Shifter, Siren, Succubus and witches/wizards. Any suggestions?

i like Greek mythical creatures... heres where toi can find everything about each of them! link

theres a lout heres the list... ( if your interested )

Calydonian Boar
Campe
Centaur
Chiron
Ceryneian Hind
Charon
Charybdis (Kharybdis)
Chimera
Chrysaor
Clytias (Klytias)
Cretan Bull
Cyclopes (Kyklopês)
Polyphemus
Dryad
Dogs, two-headed ou three-headed
Cerberus
Orthrus
Drakons
Echidna
Empousa
Enceladus (Enkelados)
Erymanthian Boar
Fates- see the Moirae, creatures of fate
Furies
Gigantes
Athos
Geryon
Gorgons
Euryale
Delphi
Demigod/Demigoddess
Immortals
Medusa
Stheno
Graeae
Griffins
Gigantes
Harpies
Hippocampus
Hecatonchires
Hydra- see Lernaean Hydra
Lernaean Hydra (The Hydra)
Laelaps (mythology)
Lamia
Mares of Diomedes
Mermaid
Minotaur
Moirae (The Fates)
Nemean Lion
Nymph
Oceanid
Ophiotaurus
Pegasus
Phoenix
Python
Satyr
Scylla (Skylla)
Spectre
Silenus
Siren
Stymphalian Birds
Talos
Teumessian renard (see also Laelaps)
Triton
Typhon

toi should look a veela and maybe even the Jersey Devil (my favorites)

Cyclops, giant, troll, devil, wyvern. Theres loads.

Phoenixes always work well with dragons. toi can use centaurs to explain things, ou make the plot plus confusing. A Pegasus is a really good creature for traveling. licornes fight very well. On the vilian side, toi can't ever go wrong if toi use a banshee. I've found that mysterious shadows also make good villians. And if toi really want some fun, put in humans. But don't give them any special powers. Let me know if toi need more.

One really good mythical creature I always, always use in my stories, and it's actually quite simple: talking animals. They don't have to be anything really special, but I'd add a talking animal ou two if I were you. Also a Chimera (creature with the front body of a lion, back body of a goat and a serpent for a tail) and maybe a Nemean Lion (a giant lion that has a pelt that can't be pierced par any weapon).