Looking for a directory to find people who need help.

Hi,

I have been looking for a directory theme for some time now for an organisation I am making. We are called “I love human” and our goal is to help and empower people. The website I have in mind is one where we can find those who need help displayed as listings that users add. If you are walking on the streets and find someone who need help or a pet for example, you can add them on the website so that people can be aware of their location and help. I was thinking about a homepage where there is a map where all the listings are displayed based on the user’s location. I don’t know if I have been clear enough, but anyone know any script or theme which does this?

Thank you.