Lost dog roaming around the neigborhood

As the title says, theres been a dog roaming around my neighborhood for the past few days. Was finally able to catch him and put him on the side of the house. Wondering if anyone has lot it or would like to keep or foster him at least. I'd love to but already have 4 dogs. Hes really nice but scared, took a bit to get him to trust me. Hes been following people around when they exercise just to be around someone. Please let me know if you or anyone else is interested. Really sweet dog.