Research books?

So as I work on my youth series I am also reading some books for research ideas. I have "One Second After" and "Patriots" on the list but figured you guys would have some great ideas. As you guys know my series is going to take place about a generation after the apocalypse. Man made EMP which makes our response to a natural event impossible so we get hit twice. A side effect is going to be that the once hidden paranormal world gets a huge magical boost. My heroine is a cop trying to solve major issues. I may make her more an investigator or private eye. Not sure yet. So I plan to incorporate some survival stuff, paranormal stuff, crime stuff. I am totally looking for good book recommendations to read to get ideas and for research. Let me know your thoughts!!