Despite his insistence that you never get to the Cloud District, Nazeem is never found in Dragonsreach ... Skyrim has few iconic characters, but one is certainly Jarl Balgruuf the Greater.
Sure, you might discover a new inconsequential character in Dawnstar, but Nazeem, Belethor ... mere suggestion of an alternate route to seeing Jarl Balgruuf (or Vignar). A couple of repliers ...