Selling 1 yr old french bulldog

We are looking to sell our 1 yr old male french bulldog. He is a lovely friendly and very active dog. He is good around kids, loves to play, loves to cuddle. He has  his shots (we have his shot record that we will give). The dog's name is buddy, and he is an outside dog.  Buddy usually is by himself, so we are not sure how he is with other dogs. The last time we took him to a dog park, he was maybe 4 or 5 months old. He was a little bit scared of some of the other dogs. I think it was because he hadn't been around other dogs and he was so small and they were bigger than he was. We were told by his veterinarian that dog parks were not a good idea and to keep him away, and so that is what we did. So he spends a lot of time by himself. Buddy is very social, so i do think he would love to have a friend rather than being by himself everyday all day. So i think he would do great with other dogs. Buddy is around 30 to 35 lbs. He sleeps in his cage and in the morning he is let out to thr backyard. He is very playful and loves to he able to roam around so we only keep in the cage for sleeping. He will come with a cage and food. Buddy is a great companion. Our family has gotten really busy recently, and buddy loves attention and needs it more than we can give him, so we can't keep him.