Darkrai to Dark/Fairy is an interesting choice, and I kinda get it.
Anyway... - Aromatisse: Fairy->Fairy/Poison (It's partially based on a plague doctor and it weaponizes pungent odors) - Beartic: Ice->Ice/Water (It's a polar bear and it learns Aqua Jet.) - Florges: Fairy->Fairy/Grass (Its hair is made of flowers! It has leaves growing from its body!) - Pinsir: Bug->Bug/Ground (This one always bothered me as a kid) - Pineco: Bug->Bug/Grass (It's a bagworm, the pinecone looking parts aren't part of its body.) - Psyduck and Golduck: Water->Water/Psychic (They learn Psychic type moves by level up and Psyduck's Pokedex entry makes mention of its Psychic abilities) - Dunsparce: Normal->Fairy (It's based on a rare mythological animal and looks like a fairy.) - Dewott and Samurott: Water-> Water/Fighting (They're based on samurai and they fight with sword shells)