Found cat?

Update!: I caught him and brought him to the shelter, they found no microchip. They will keep him for about 5 days incase anyone wants to come claim him, and then afterwards they will start the evaluation process for adaptability (which I’m sure he will be adopted super fast since he’s so sweet and gentle!) This cat has been lurking around my backyard for a couple weeks, day and night. he’s not fixed and doesn’t have a collar. He’s not aggressive but won’t let me get close enough to pet him. He’s pretty skinny but doesn’t look injured in any way. He’s always meowing and I think gets into fights with the resident raccoons. Is this someone’s missing cat? I am thinking about asking the shelter for a humane trap, so I can get him to get a microchip checked, but I’m also worried about putting him in the shelter because what if he never gets adopted and spend the rest of his days in a kennel? I can’t take him myself because I already have a cat :(