They're all matriarchal. Geliara are the ones who founded the school. They're also very big on the whole 'Everything is Vallo and Vallo is everything' stuff. They're who you're more likely to see out helping the farmers with blessing their crops and things.
Prigany are very chatty. Like they will seriously talk your ear off for hours if you let them. All while trying to sell you on your destiny.
Beketh are probably not coming because they don't really trust anyone not in their coven. They'd probably prefer meeting smaller groups and even then, only if they think you're worthy of their time. But they make really delicious dark chocolate fudge brownies.