There are none, unfortunately. Lots of the places listed on [WhatPub](https://whatpub.com/search?q=Glasgow&lat=55.8636&lng=-4.25197&r=10&t=t&p=1&home=1) are not serving real ale at the moment (e.g..Corona, Old Smiddy). Your best bet is probably the Allison Arms, or Clockwork.
There is a Wetherspoon's in Shawlands, but fuck Wetherspoons's.