Th eother approach yo may want to take is to have a look in the Mtl newspapers when you get there.
The Gazette has a decent massage section. The Journal de Montreal has even more ads than the Gazette.
There are a few free weeklies all over downtown.
The best English one is the Mirror. Lots of ads for everything you could possibly want. A few phone calls and you'll be all set.
But as I said in my initial reply, check out Isis. You can't go wrong.
And just a word of warning. You will not find any posted prices in Mtl. Options are in a very gray zone legally, as there are no body rub or holistic licenses there. That means you're on your own as far as tipping goes.
If you live by the 20-40-60-80-100 guideline, you'll be ok. And by that I mean 20 = hj, 40 = topless hj, 60 = nude hj, 80 = body slide which is called a thai in Mtl, and 100 = if yo happen to get something more than a thai, wink wink nudge nudge.