My name is Barnaby!

We found this puppy in a cemetery back in September. He had some kind of banding strap tied around him. He had fleas and ticks, but we have since taken care of that. We've spent the last almost 2 months looking for his family, but no one has come forward about him. We believe he was likely dumped. He is not neutered and is not microshipped. He appears to be less than a year old.
He has big puppy energy and loves to play and chew. He is a sweet heart and loves everyone and loves giving kisses and is super excited to play with other dogs. He is highly food motivated.
My sister has been fostering him but she can no longer do so has it has been a lot on her mentally and physically and on her senior dog. She was not ready to have to care for a high energy puppy and has been having bad anxiety attacks recently.
We have been trying hard to find him a home or a foster and we also have set up an appointment with the Humane Society next week.