Might be a duff idea, but to encourage participation, thought I could suggest a demographical walk. The core idea is that everyone does a bit of research on one location, rather than a single person moderating the walk.
Only caveats are: it has to be at least a hundred years old and the more interesting or unusual the better. Plan to start at Glasgow Cross, with the default to move up the High St/Castle St, then move North West although any diversions welcome..
Meet 11am Glasgow Cross on 2nd January. All welcome, even if you don’t find anything to talk about. Usual pit stops apply.