I'll give you three for each
>Normal/DragonMega dunsparce that is still a fat snake like any tsuchinoko should be. Pretty much just the same thing but bigger and with dragon wings.
A more mammalian dragon like the ones often seen in 1400's era artwork. (pic somewhat related)
A half demon/half angel dragon wolf manifested from the dreams of deviant artists.
As soon as you catch it, it changes forms into a fat ugly blob monster that resembles nothing like a wolf or dragon. It can't be changed back. >Bug/Dragonpic related but more scorpion like
A giant velvet worm
https://www.youtube.com/watch?v=LY8TgD6-7kgA dragon formed out of all 379,988 species of beetle that are not yet represented in pokemon. They are all very angry about their order's misrepresentation in the series.
>Dragon/Fighting A giant arm that comes from the clouds and punches things.
A cock-fighting cockatrice that is the sworn rival of blaziken.
A big veiny fleshy dragon that bashes everything it sees with it's purple drooling one-eyed head.