Terezi - for a shiny female? - dirk-also-eats-cake
Calcifer - after the fire demon in Howl’s Moving Castle. - elysehazblog
maybe after a character in Blue Exorcist? (because of the blue flames) - colleyuriko
Chichi, Chimi, Zardor, Zardos, Charidar, Chester, Flitz, Blazard - pkmnpancham
Charles - because it’s fancy - thedemonandtheundead
Kuro - since it’s black.
Zphyer - after the dude from One Piece that shoots fireballs from his arm. - Mei
I named mine nibbles…