Creole Tomatoes - where to buy?

I’m in Austin and about thirteen years ago a client of mine gave me a flat of Creole tomatoes after a trip to the casinos. I remember LOVING them. We lost touch after he went to prison otherwise I would ask him😂

If I could swing a quick trip to Louisiana in July, is a grocery store in/around Lake Charles my best/closest bet? Farmers markets? Is the season already over? I’m tempted to go to the festival in June in Nola but I’d need to figure out how to check them properly so the airline doesn’t smash the precious cargo.

Any other summertime festivals that would highlight them? I searched this group and the festival thread is closed for comments so I couldn’t ask.

Thanks in advance for any tips!