That's a tough task. Most classes in Chicago, especially at the beginner level, are guy-short. But I would try Ruth Paige at 1015 N. Dearborn. It seems to have a few more guys than most other studios.
There's also one in Andersonville, but I can't think of the name right now (I just fell out of bed and have to awke up). I'll check and write back.
balletboy[/i]