Lunches here tend to be collections of what's available, deviled eggs definitely show up when there's hard boiled eggs around. If it's a party situation, I assume 2 to 4 halves per person depending on the crowd. For big parties, my eggs box holds 36 halves, that's the most I'm bringing somewhere.
If I make more than one flavor, I make sure they're visually distinct. Different colors of yolk paste, different toppers like an olive or pepper ring, a bit of dill leaf, a pinch of a deep red spice powder.
Flavor note - add a little bit of something vinegar to the yolk paste, It can be pickle juice, the vinegar in a mustard or other additive, or a splash of whatever you have around. It'll make the flavors you add pop and background the heavy yolk taste a bit.