Found cat outside Rhode Island Ave metro

Found this handsome guy late last night (4/4) standing in the middle of the Metro Branch Trail right outside the Rhode Island Ave entrance. He seems far too clean and friendly to just be a stray, but I took him to the vet this morning to see if he’s microchipped and he’s not (also not neutered). He has a pretty distinct fur pattern on his back and a little black spot just above his nose. He also has loudest purr I’ve ever heard. Please reply or message me if you know this little dude. I’d hate for him to be away from his family. I would also really appreciate any tips on what else I can do to ensure he’s taken care of.