"Doggie Playgroups" - Wasn't aware of any such thing in HK.
Thinking that pet lovers who walk their "doggies" (& BTW, don't think the word's really "baby talk" in the sense of juvenile/puerile
) along similar routes might slowly get to know one another, then organise something, say a walk up in the hills or in a stretch of woody green, to help their pooches better socialise with each other.
Deep in the NT, these past cool months, that's what me & 2 others have informally done - At least once a week, we get together to trek up quiet countryside slopes with our doggies off leash, sniffing every which way, & prancing around chasing tail!
Maybe you could approach the dog-friendlies regularly walking their doggies in your vicinity. Over time, tentatively gauge the "fit" in dog personality first though, as it could be the case of trial & error!
Otherwise, better refer to a dog professional for advice. I'm a novice
