Basically anything or anyone that's been mentioned by the NPCs is fair game. Or things not mentioned but that you'd expect the city to have, such as a police station (though I'll say now that the police don't have much reason to share their info with strangers).
I got about halfway through prewriting locations yesterday so it'll be a while tonight before things go up. Just so folks are aware, the general plan is to try to push through the next set of locations a bit quicker this weekend; I think there won't be quite as many weird little details to tease out as there were at the museum.