Could this be a border collie? I thought he was a mix but I didn't know that short-haired border collies existed until I found this subreddit! : r/ BorderCollie
Do Border Collies Shed Excessively? (What You Need to Know) - Stop My Dog Shedding
The 23 Cutest Pictures of Short Haired Border Collies - The Paws in 2023 | Short haired border collie, Border collie, Collie