Right now you want a indoor flea market and the closest one is
Barnyard Flea Markets|Rental Selling spaces in Flea Markets of South Carolina,Outdoor Flea Markets in North Carolina and Flea Markets in Georgia for Antiques,Merchandise and Crafts
You will need to have a South Carolina Sales ID for this one because it sits just right on the border.
One of the oldest and loads of vendors is Webb Road Flea Market but you will more than likely be in a tarp covered shelter or outdoors. Being that is so old it is also popular for vendors and buyers.
IMO the clientele may not be the crowd you are trying to reach.
Check the authentic of your products the last thing you want is to be arrested for counterfeit goods.
When I look at flea markets if they will be duds or not is the amount of vendors they offer