I've had or currently have lyretails, sunburst, borbonious, dispar, randals, japanese fairy basslet (a type of anthias despite the name, same as randalls and resplendant I'm sure), and sunset.
Dispar stick together like glue no matter what else is in the tank or how may of them you add. Very peaceful, never fight or bicker, not even the males. Mine eat everything, even pellet. I use sustainable aquatics pellet, something like 1mm. Even my bangaii eats it.
Sunset, randalls, and japanese fairy basslets also stick together, but are not very hardy and won't last on less than 2-3 feeding a day. Also out of all of the three species, only one of my randalls eats pellet. The rest only eat frozen.
Sunburst and borbs are loaners, it's their nature. Lyretails don't school or shoal. I had nine at the height and they would be scattered all around the tank. One here, two there. Ended up with three males and 6 females. Still didn't shoal.
I'd suggest dispar. Try to find some that eat pellet and get yourself an eheim auto-feeder.