@Cannibal1988 I have had great result using seedsman seeds and they do send to Canada I checked for you
They use a good stealth method of hiding the seeds but for total stealth they will usually need to remove the original breeder packaging.
They have a vast range of both their own strains and all of the popular breeders you see on here they have them
They also give freebies 👍😀 As for strains The strongest smoke I have had came from a sativa that took 16 weeks to finish flowering I am not sure if that is suitable for your setup. So I will recommend one of the strongest indica dominant hybrids Gorilla Glue #4 if you can get the real deal it will blow your socks off buddy