Don't know if this qualifies as a "chain," but it's a ready-to-eat meal sold hot in a multi-outlet place with seating. And napkins, which you'll need. Living in Ann Arbor, MI, where good barbecue is not at my doorstep, I've been pleased to find that the BBQ counter at Whole Foods is a reasonable substitute many days. Do all Whole Foods have these? Not the first place I thought to look for barbecue, but I guess coming from Texas they can't get away with wimpy 'cue. I especially like the smoked meats--if there's a smoked chicken anything out there, I grab it. The basic pork BBQ sauces, some of which contain anchovies, have some zing too. They tend to have pulled-meat sandwiches rather than racks of ribs, at least at my location, but the selection changes daily (or more often).