The simplest way to find cross streets for an address is by using the map application on a smartphone. All smartphones come with GPS or map applications. However, if a smartphone is unavailable, Google Maps and Mapquest offer the same capabilities on a PC or tablet.
Google Maps and Mapquest are two popular map sites that offer comprehensive and up-to-date maps of virtually any inhabited area on the planet. A user goes to either site, types in an address, and looks for the nearest cross street. If the street is not visible, a user zooms out until the desired cross street is visible.