Unsure if aggressive behavior or not.
First off, I looked for a similar thread and found nothing so if I am asking a question that has already been answered please send me a link to that thread.
My now 6 month old male GSD has, for the past few weeks, been having problems with mainly other dogs. When we first got him at 8 weeks old he was always eager to meet other dogs and play. We were living in an area with a small fenced in backyard but have moved to an area with a shared yard and a few parks around us. Not too long after moving we found that anytime another dog was nearby, whether it be in the building, or outside, he would raise his fur on his shoulders and neck and start barking. But when he was able to get close to the other dog to say "hi" he has yet to bite another dog or person. (knock on wood) Once he gets to know the dog or person he was barking at he changes attitude and wants to play. The reason I would like this problem fixed is because a lot of times he isn't able to say hello to new dogs because the owners are afraid of him. I have attempted to fix the problem by calming him down before meeting the dog, praising him for calm behavior, and if necessary, turned him away from the situation and praised him for being calm. He wears a harness, so his aggression isn't increased by something choking him, which we noticed helped a little bit after switching him from his collar back to his harness. Thank you for any help!