By Kirk Miller Two hot trends in bars? Franchising. And taking away the alcohol. Chris Marshall is finding success in several cities with a sober bar concept called Sans Bar. Sans has a semi-permanent space in Austin, TX, but the bar is now expanding to different cities via some limited-time pop-ups. It’s Marshall’s attempt “to be the Starbucks for the sober-curious era,” as noted by The Hustle. Marshall, a recovering alcoholic and former counselor, has found early success with his no-booze concept. Up to 300 people turn up to his sober bar pop-ups, where you can find drinks like a Rosemary an…