Well it is what I do for a living, driving around documenting these cool cars.
There are tons of cool cars hidden out there. You never know until you start talking to people and letting them know what you're looking for that they come out of the woodwork.
I post daily about stuff I've found.
https://www.facebook.com/TheAutoArchaeologist/
https://www.youtube.com/AutoArchaeology
https://www.instagram.com/theautoarchaeologist/
Ryan