The Scythian
Explorer
Whispers of the Dark Daeva by Richard Green. It's designed for Green's Parsantium city setting and has a distinctly Indian flavor, but with a bit of filing you could make it work for just about any large fantasy city.
I ran "The Scroll Thief" as a side adventure while my Tyranny of Dragons group was in Baldur's Gate. They really enjoyed that one. I do like "Cloak and Shadows", especially its alternate chase rules, but haven't run the actual adventure. It's more for 3rd level PCs, though, isn't it? I'm not that familiar with the last one.