Should you love a particular Amorphous Pokémon, you can join one of the following clubs if that particular Pokémon has an existing club! If you have a club with one of the listed Amorphous Pokémon or know of a club that has it, be sure to let me know, so I can update this list. So far, these are the following clubs with them:
Weezing (NEW!)Gastly, Haunter & GengarWobbuffetRalts, Kirlia, Gardevoir & GalladeSwalotSpiritombRotomReuniclusChandelureStunfisk
That's it for now.