Buy Canadian

McCains is Canadian

Perhaps salmon or other seafood? Probably some whiskey/liquor as well.

Daiya as a dairy free alternative

The LitterLocker cat litter disposal system (i.e. a bin with a springloaded door, which accepts cartridges of continuous plastic bags) is Canadian, IIRC, and widely sold in Europe

It'll probably be easier for you to buy or support Canadian digital media than physical goods.

Contributing to Canadian projects or gofundme's would also be highly direct.

Probably actual maple syrup, I'm pretty sure we produce the most world wide by a large margin.

Thanks for the encouragement. But I think Europe pretty much got it covered.

I go to France every year and I rarely see any Canadian products other than anything maple.

Canadian whisky (Sam Barton)

That's about the only thing I see in stores except maple syrup