If you really want to see a bunch of "old cars", you need to come to the Henry Ford Museum/ Greenfield Village the first weekend after Labor Day. Sept 10-11 this year. In my opinion this is the best non-concours old car event anywhere. This is where you can see "normal" vehicles being driven and enjoyed by their owners.
The event is limited to 1932 and older vehicles only. There is usually 600-700 vehicles in attendance along with a lot of other items of the era like motorcycles, high wheeler bicycles, etc... During this event, vehicle owners are allowed to drive their vehicles around the village. Lots of rides given to many friends & families.
There is also a HCCA & AACA two day tour the Thursday & Friday before the weekend event. If you come, look me up as we will be there with the '15 Buick Truck.
https://www.thehenryford.org/current-events/calendar/old-car-festival/?gclid=CjwKCAjw3qGYBhBSEiwAcnTRLidcF7CvwwmX7_51IrOtJt9awpWpI2PQw3d5C8e_PdUcJyBvN6ARlRoC1PoQAvD_BwE