The Texas Monthly article mentioned was August 2016. Here’s a link to that section – for those needing some reading material.
The top place is/was in San Antonio. # 5, Hub Cap Grill in Houston, the location mentioned, downtown on Prairie, has closed permanently, but at least one other location (the Heights) is open that I know of. Many of Ricky Craig’s creations are too bizarre for me but I like the Frito Pie burger. That location was an iconic Roadfood type facility – an old lunch counter in a stand-alone tiny building that dated to the 20s I think and only sat 11.
Bernie’s Burger Bus locations have all closed; they were expanding constantly since their initial success as a food truck (uh, bus) and had just opened a sixth location as I recall. They used up all their capital reserves according to the owner and only lasted a few weeks into the Covid-19 shutdown. He says they’re not coming back.
The piece on Hall of Fame places will probably be the one that is most interesting to Roadfooders and Roadfooders will probably be familiar with them all. I’ve eaten at Dirty’s in Austin, Kinkaid in FW and, of course, Langford, here (many times.