Ahoy there. Since WHF fans have been exiled to the decrepit shed at the bottom of the garden over on Dakka, here seems like the place to come to ask this: Are there any fluff sources for Lizardmen and/or Lustria other than the army books and that single Florin & Lorenzo novel? Other Black Library works, any RPG supplements, anything? After admiring Lizardmen from afar since I was wee, I'm finally indulging myself a bit with a Mordheim warband, but I've struggled to find the kind of additional fluff material I'm used to having when I do Old World projects and it's a bit annoying.
Welcome to the forums! You chose my favorite sub-forum for your first post. We discussed what official sources of Lizardmen fluff exist here. Generally speaking, we make our own fluff. Check out the Lustriapedia for a guided tour.