take the TSE 60 stock available on the TSE.com and check manually them. Even in the TSE 60 many of them are not very liquid, you should not take too many time for to browse it. Usually major Canadian stock have a US stock also, e.g.
NT, BCE, BMO, JDS
the only problem is often not liquid on the both side, but only on side. Some exception as NT, but not a lot.