Which countries don't require a passport to travel to from Canada.?

None. Since the US imposed passports on Canadians, Canada expects passports too.

I don't think people from another country have the right to enter a country without a passport unless it is an overseas department or commonwealth. In the USA people from the Federated States of Micronesia and the Marshall Islands are allowed to immigrate to the USA without a passport because of the pass history America was involved with them. People from French Guiana are allowed to travel to France without a passport because it is recognized as an Overseas Department.

There are no countries Canadians can go to without passports (that I know of).

Americans can legally enter Canada without one, but, they are the only people that can. And, they need passports to get home again due to US laws.

None. You must have a passport to enter any foreign country. Maybe you meant to ask about visas...a very different thing. A visa gives you permission to enter a foreign county...some require it , some don't. See sight below to see which countries Canadians may travel to without a visa.

Republic of Greenland

USA