I will put in another vote for urban planning. Pursuing employment with a city you would like to work for, in any department, will help. Thos will likely get you on the ground experience with not only that particular aspect of the city, but also the culture of employment there.
Additionally, there are usually NGOs in urban areas that provide a variety of services, some of which would benefit from what I perceive your education to be in. Or "delay" yourself and look at international outreach programs that are relevant and meaningful.