Maybe a trail dog that’s a bigger and badder dog? My English Mastiff scared the sh-t out of basically every other dog on the face of the earth with his mere presence. We lived in a gated community up until he was about a year old. The Doberman that the dumb drunk soccer mom used to let chase people down the golf course trail? Went running home tail tucked between it’s legs at the sight of my dog. The aggressive GSD that ran across the road after my smaller dog? It about had a stroke when it crested the hill and saw the mastiff strolling back onto the trail from the berm. Mastiff said “woof”. GSD peed itself and almost got hit by a car running back across the road. Police dogs melted down when they saw him.
The mastiff was about the politest, sweetest, most well-behaved dog you ever met. Got along great with horses, cats, chickens, humans, etc. Only barked for real once in his entire life, in response to a potential threat from a dangerous human. I wasn’t riding much during the time he was alive as the girls were little. If I had been, I would’ve taken him along in a heartbeat. He would’ve loved it and he was so horse safe.