There are 7 Mons (14 if you separate by gender and species) in the game and there likely won't be more coming from PawPunch in the near future, but there is supposedly a mod for this game in the works that aims to add more to the game by someone called "FemAve." The recipes are chance based, so if you put half Oran berry and half Pecha berry, it will be more likely for you to get a blue mon, use this example and the description of the variety of berries to make your own recipes, and the Enigma berry will give you a predetermined Mon based on the slot it was put in.
List of 'Mons planned to be added to Corvary's mod.
Floragato - Grass
Primarina - Water
Medicham - Fighting
Salazzle - Poison
Armarouge - Psychic
Ceruledge - Ghost
Lopunny - Normal
Leavanny - Bug
Dragonair - Dragon
Ampharos - Electric
Whimsicott - Fairy
Altaria - Flying
Banette - Ghost
Garchomp - Ground
Lycanroc Midday - Rock
List of 'Mons planned to be added to Corvary's mod.
Floragato - Grass
Primarina - Water
Medicham - Fighting
Salazzle - Poison
Armarouge - Psychic
Ceruledge - Ghost
Lopunny - Normal
Leavanny - Bug
Dragonair - Dragon
Ampharos - Electric
Whimsicott - Fairy
Altaria - Flying
Banette - Ghost
Garchomp - Ground
Lycanroc Midday - Rock