I’m not sure what city/state you are in, but how about the school system? I’m sure there are teachers who may be interested in taking a class at a convenient location. Also, check small businesses, spas, country clubs, places where moms take their kids for classes, and local athletic facilities. One local hockey rink near me has added fitness classes for the moms. So, there you have a few more ideas….
Hope these help and good luck!