10 month old German Shepard , male , got all jags and chipp

I’m looking to sell my 10 month old shepherd he is brilliant with kids he’s been brought up around other dogs and baby’s/ children . He’s very excited and barks at everything but is not reactive what so ever , he’s very very high energy so would want him to go to someone who knows the breed well as he’s very dominant and needs someone who will take control of, reason for selling is I stay my self with my wee boy and two dogs but I can’t walk him at all he is far too strong and av always got my wee hoy so it’s impossible to be able to walk him as much as he needs hence the reason he is so excited