Hmmm Canada is a bit tricky. I don't live there so it can be tricky suggesting stuff that's legal but I will recommend some of the stuff I breed and you can check them out. I like black soldier fly larvae and their flies as a healthy regular feeder and enrichment feeder. There is silkworms, if you can get enough you can easily start breeding them, I would recommend potting a mulberry tree so that you have a constant food source through out the warmer months of the year. I don't think hornworms are legal there but you can look into them. There are super worms, I just buy mine and gut load them, but they are relatively easy to breed if you want to do that. For main staples I do super worms, crickets, and two types of roaches. I have also started something that you will probably be able to get very easily. I have a colony of giant canyon isopods. They are extremely low maintenance and very high in calcium. They make great staples. I recommend the giant canyon because you can feed the adults to adult panthers and veiled, and feed the younger ones to babies of all sizes. They are also very fast, so when disturbed and put in the feeding cup they scurry around for a long time and catch the interest of my chameleons quickly. There are also other types of flies you can pupate if you order them online. I have stick insects, so if you can find some wild caught ones and make them happy you can easily start a colony from them. There are a lot of possibilities I probably haven't even mentioned everything.