you can make this based off your biases or just the members you find really talented or would work well together, whatever you want. try to include at least one member from each group. be as elaborate as you want!
my group:
jihyo - leader, lead vocalist
momo - main dancer, lead rapper
tzuyu - sub rapper, vocalist
seulgi - main vocalist, lead dancer
irene - main rapper, visual
rosé - lead vocalist, center
jisoo - vocalist, rapper, face of the group
i imagine this group having an elegant concept, stuff like girls generation’s “the boys” or red velvet’s “psycho” in concept.