I hear you. I just don't have anything going on right now. However the Town of Superior Chamber of Commerce event calendar shows St Francis Fiesta & Car Show 09/21/2019 from 9:00am to 11:00pm. I'm not sure if there is fee to display cars or not. I would think not.
This annual event is put on by St Francis of Assisi Church of Superior, AZ is well attended by several car clubs. There are vendors with all sorts of goodie and lots to eat and drink.