Try do Warmouth with any species. Maybe a Longear or Pumpkinseed. Has anyone seen a Pumpkinseed x Longear or Longear x Green?
warmouth with longear, or either of those with pumpkinseed, couldn't you try a bass with a sunfish, because bass are technically sunfish, just like peacocks are cichlids
Wiggles, get up here so that you can be a part of this.
My understanding is that all of the lepomis will interbreed. I would be shocked into a comma if you got a pygmy or a blue-spotted to cross with the lepomis group. I must have missed your objective, but if it is aquarium hobby I don't see any value in the bigger centrarchidae. If it is gamefish, then there are some cool prospects!
If it was me, I would work from the Dollar Sunfish for color and size. Warmouth could be a cool start to a miniature bass for the aquarium bus.
Smallest lepomis is the Bantam....L. symmetricus.