Well any cargo operator with DC-10s, or 727s have em.
In Canada - off the top of my head - there's still Kelowna Flightcraft, and Cargojet (although I think they may be done with the 27s). Not to mention the couple private 727s floating around.
What is different is there is very few dedicated, career FEs. Some of my buds that have "sat sideways" are usually waiting for an FO spot or move on to an FO spot at another outfit.
It's not a bad gig really; it's a relatively quick way to get on a larger jet and scooch into that FO spot in a year or two.