Seeking a Cotillion or enough people to create a class?

Hello fellow parents! I have middle schoolers, and I am desperately looking for a cotillion class in the East Bay. Any leads are appreciated- even just the names of an individual instructor! I am happy to try to gather enough students to try and build a class. Please respond if you too are interested in attending a cotillion class. I can start to gather interest for when I do finally find a class or an instructor!  Best to you all. Grateful for the collective networking.