It has come to my attention I've written something for every type in my main gallery, without having to double-dip stories to fulfill type slots or resort to the scrap submissions. One combination is as follows, with one unique story attached per type:

Normal: Kangaskhan
Fire: Ninetales
Fighting: Lucario
Water: Vaporeon
Flying: Noivern
Grass: Serperior
Poison: Roserade
Electric: Emolga
Ground: Swampert
Psychic: Gardevoir
Rock: Kabutops
Ice: Froslass
Bug: Vespiquen
Dragon: Goodra
Ghost: Mismagius
Dark: Zoroark
Steel: Magearna
Fairy: Aromatisse

(The temporary ??? type doesn't count; except maybe for April Fools stories.)

Variety, spice of life, etc.

Fun fact: Kabutops was actually not the intended one I implied from this list! I started something else from this list before putting it aside in favor Kabutops, which sprang up in the middle of the original one. I still plan on finishing the original one before Kabutops happened...but which one that is and when is something only time shall tell.
Assuming I don't do something else not on the list again...