Have a look at SwitchHealth. They have Rapid Antigen tests (for your outbound travel) and RT-Lamp test for your return to travel. They send the tests to your home address in advance, and you self administer from anywhere (as long as you have internet)…results within the hour. Discounts for Aeroplan members…2 rapid tests for 80 and 150 for the RT-Lamp

https://switchhealth.ca/en/partners/aeroplan/#collectionKits