Everyone keeps saying dogs. I hard disagree. Almost all dogs bark without needing to, giving positions away or false positives of foe, even well trained dogs are better but not so much so. They seem to be more resource drain than value.

I think goat, sheep, cow, horse, chickens, rabbits, donkeys maybe better than horses, camels maybe meh, are far superior for activities of all types like food generation, feed for live stock, produce, input vs output, compost, pelts/furs, usable materials to craft and build. Hunting and fishing are not novel concepts in which dogs excel paired with humans. Their main advantage is long running distance able to outwind deer and other species. Dogs are a high responsibility animal.

Hell a well trained larger cat species would be far hunting superior. Even a hawk, or any larger bird would be better than a dog. I suppose it depends on environment and conditions. Crows are good group workers.