>>35837565Niji has 4 girls who are somewhat popular.
Enna, Selen, Pomu, Elira
Enna is highly unseiso, half the time talking about her periods and shits. Selen is fun, but can be very abrasive, not known to be social with people.
Pomu and Elira can work fine. If you want to add other cute people like Rosemi, you have to deal with the fact that their popularity is much less, so it's a losing equation for hololive. It might be best to add some ID's to balance things out, like maybe Reine or something.