Hello from From Corvallis, Oregon.
Parlando, welcome to site membership! Feel free to ask any questions and to post messages, photos and videos in our many forums. Please read
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I won't get into specific canoes in this post, but just talk in generalities about materials. Plastic canoes are the heaviest and least expensive. You can certainly get a 16' plastic tandem canoe that weighs less than 90 pounds, but probably not much under 70 pounds.
Composite canoes made of carbon, Kevlar and some other lightweight fabrics are the lightest canoes and the most expensive. You can get a 16' composite tandem canoe that weighs less than 40 pounds from manufacturers such as Swift, Northstar, Wenonah, H2O, and Savage River, but new it will cost $3500 to $4000. Clipper Canoe, which is close to you in British Columbia, probably makes a 16' tandem in the 50-55 pound range for possibly less than $3000. Check their websites.
Because the price of new composite canoes has soared, many folks shop on the used market in places such as Craigslist, Facebook Marketplace and other FB canoeing pages, and in the classified sections of websites such as this one. Buying used, you will often have to take whatever is available within your tolerance for driving distance, unless you want to sit around forever waiting for the perfect used canoe.