Depends on what it is from Amazon you want, because there is no drop-in replacement that does 'everything' these behemoth companies do.

Their strategy was to use their cloud services profits to allow them to undercut all physical product delivery services, operating at a loss for many years until they were out of business. Then they also introduced Prime to get people on subscriptions and help pay for this unprofitable service. Then once competition was killed they gradually made their services shittier for 3rd party sellers and consumers. Sounds like a familiar story doesn't it?

So anyways. There are alternative cloud providers based in Canada. There is Canada Post for shipping. There is Giant Tiger and Hudson's Bay for shipping department store items, there is Memory Express, Canada Computers, PrimeCables for computer stuff. There is Canadian Tire, Partsource, Princess Auto for random automotive parts. Many medium to large sized Canadian Companies will have shipping so check there.

But there's no real "Everything store" like Walmart or Amazon that is Canadian.