I guess that I don't understand your question.  Are you looking for a bar to pick up local ladies, or a bar where providers hang out?

For local ladies, the bar at Thursdays on Crescent Street is a meat market most nights.  For providers you could try the lobby bar at the Hotel de la Montagne one street over.

Montreal is one of the best cities for outcall, with most agencies having websites with accurate pictures, descriptions and schedules.  The prices can't be bet when compared to US rates.  Do some research here, look at the recent reviews, and if you still have questions go ahead and ask.

Regards,

Voyager