Passing the time on FlightRadar , I put a filter on so it's only looking for 747's. Dozens of them out there and 99% freighters. Those operators must be making a reasonable living at the moment.
And yes the B737-200 still operates in Canada, with Nolinor being one of 5 operators in Canada with the B737-200 Freight Combi Gravel Kit's to service the Canadian North. EXTREME FLIGHT - B737-200 Combi Gravel Strip Operation