Walking around planetarium

Hi, would be anyone interested in walking/meeting around planetarium?
Jago is 9 years old male, he gets on particularly well with female dogs or smaller than him.
He is good off lead, I try to not make him run as crazy because he has some health issues.
Sadly he is reactive with German shepherd/,
Akita since he had a bad experience in the past :(
Also he gets grumpy and stressed with young energetic dogs, sorry :(
I am happy to have some quiet walks on lead and/or some playtime off lead.
If you have a bigger male dog I am also interested in trying, when he knows the dog he gets fine (he used to go a lot to dog sitter with all kind of dogs).