Comparing Toronto to Chicago or Los Angeles sort of works for me but it still feels extremely off. Foreigners are vastly more interested in Chicago and Los Angeles compared to Toronto. Technically speaking, it makes sense, but, in practice, Toronto is sort of a provincial place?
On a technical basis, Illinois might seem like it would work but nothing in Illinois really resembles Canada (downstate Illinois would be "sui generis" in Canada). New York would work if it wasn't for the fact that NYC is arguably the world's most important city. Michigan is, quite literally, like Ontario though. Culturally speaking, these two places are siblings! I wouldn't over think the Toronto-Detroit analogy tbh.