#flame whipper

Monsterous Nightmare: fire/flying, but fire/poison with levitate is more fitting with the kerosene gel.

Terrible Terror: fire/flying, they are small and flock like fire breathing birds.

Night terror: dark/flying, they form larger dragons and are nocturnal.

Singetail: fire/flying, they have 4 wings and can shoot fire from their mouths, tails, and underbellies.

Typhoomerang: flying/fire, it can create fire tornadoes.

Shadow wings: The small ones are fire/flying. The big one is pure flying since it doesn't have a fire attack.

Fireworm: the queen is fire/poison due to being on a high temperature and venom. Babies are pure fire.

Hobgobbler: fire/flying or fire/dragon for the lols

Gobsucker: poison/flying or fire/poison for it's sulfuric compounds and reliance on it.

Hobblegrunt: Pure flying, normal/flying, or fire/flying. There isn't anything special about the fire and it can have the color change ability

flame whipper: fire/poison because of venom and lizard like attributes.

silver phantom: dragon/fire or dragon/flying because of special blue fire, speed, and rarity. The only ghostly thing is the name.

Threadtail: poison/flying or poison/fire due to the poisonous skin.

Red death and green death: dragon/fire due to the legendary like status and living in a literal volcano.

Now the nine realms (I hate it too)

bubblehorn: fairy because giving it the fire type is an embarrassment.

Flame thrower: fire/flying for obvious reasons.

Magma breather: fire/rock or fire/ground due to the relation to lava and the rocks on its back.

Sky torcher: fire/dragon for draconic villainy and firepower.