Here's a recap on what's going on so far:

The first trainer is being fought by Kaze, Jingle, and Fluke.

The middle trainer is being fought by one person via PM, though I think that collab is ready to be posted.

The third trainer is being fought by Mia, Scarlet, Tantalus, Apate, and Vuduin.

Hopefully this will help the remaining people decide who to fight.