Amazon.com will ship to Canada on many items. You pay the tax and duty upfront so the price you are charged at checkout is the max and if it is in fact less than they estimated they will credit your payment method with the difference.
The Samsung Chromebook Plus v2 is on sale for 400$ (originally 600$). https://www.amazon.com/Samsung-Chromebook-Plus-Camera-Chrome/dp/B07J1SY5QQ That is the one that I am typing on now, and is going to be one of the best value computers. It has a really nice screen, and I rather like the travel and the clickiness of the keyboard. Also, the processor is snappy enough to run Crostini well. Getting a Chromebook with an intel i5 or i7 will be snappier with 8gb of ram, like the Lenova Yoda c630 or the Acer Spin 13 but your going to be paying a premium 700$ for either of those unless you get refirbished (at least 650$). There is the Acer C771T also, which can be found for around 550$ or so. But you may want to drop by your local best buy to see thr screens and keyboards yourself, as the quality of the midrange screens can vary quite a bit. The Samsung v2 has one of the better quality screens and I can vouch for that one. Of course, if you want the best, you could just grab a pixelbook 2, However that is going to cost a cool 1,100$, and seems way too expensive, seeing as you could get the Lenova and the Samsung for the same amount.