There are two paths you can take. Part 61.75 allows a FAA private certificate to be issued based on your Canadian license. You would need either a FAA medical or a Canadian medical. There’s no written or checkride, just the verification of your Canadian license. I don’t know TC regs but to operate with a 61.75 certificate the “based on” license has to be valid, not suspended or expired. As pointed out, you would need a flight review to bring you up to FAA currency. Or, because TC and the FAA have a deal worked out, you could get a FAA ATP with your type ratings carried over. Again, you would have to have your Canadian license verified, get at least a FAA third class medical, complete a 40 hour ATP Certificate Training Program which is designed to bridge the knowledge gap between a 1480 hour C172 instructor and a 1525 hour regional F/O. There’s also a special ATP written test of 60 questions to pass. But no checkride.