In El Paso I would be really surprised if you are getting Rodenbach. I've never seen it around here (DFW) or Austin. For that matter, I've never seen Jolly Pumpkin or Cantillon either but I guess you might have some different distributors out in El Paso.
You should be able to find La Folie but it is really sour and might not be the best beer to go with your first time. You might be able to find Petrus oud bruin, Monk's Cafe, or Duchess de Bourgnone. All Flanders reds which you may or may not like. I like Petrus but I dislike the other two. You should be able to find some lambic out there. Most fruit stuff you'll find is backsweetened but you might find Lindeman's Cuvee Rene Gueuze or Timmerman's Oude Gueuze, both of which are not backsweetened. You might also find Liefman's Goudenband, an oud bruin, which has started showing up around Texas the past few months.