Here where I live in Toronto, our hockey team the Toronto Maple Leafs are like the most famous thing in our city. Toronto Maple Leafs and Montreal Canadiens are very much the hockey capitals of the world, and both teams are easily the two most profitable and highest valued teams in the entire NHL. Pittsburgh has been coming on strong in recent years, as well Detroit, New York Rangers, Edmonton, Calgary, Vancouver, and Boston have notably successful franchises.
The price to attend a hockey game in Toronto is the highest in the entire league. Ice level would be $1,500+ and I think the absolute cheapest ticket you could get to go to a Leafs game would be like $150. That would be the "nosebleed" section, high up in the stadium, like the worst seats imagineable. Every game in Toronto is sold out at about 20,000 fans. The demand for hockey in Toronto is so high the NHL has even spoken about putting a second team in this city because there clearly would be enough demand to support it.
Just as the NFL is in USA, that is how the NHL is in much of Canada.
The only sport I really follow closely is boxing. Hockey I watch a bit here and there, its impossible to escape in Canada. I do watch the playoffs and the teams I support is the Montreal Canadiens (where I first lived in Canada) and the Toronto Maple Leafs (where I now live). I'm happy that this year both Montreal and Toronto are playing well... they are saying Montreal may even play Toronto in the playoffs and if that happens its gonna be brutal! Montreal-Toronto have the worst rivalry in all of hockey so that playoff series will be brutal if it happens.
Toronto Maple Leafs havent made the playoffs in like 10 years, so everyone here in Toronto is excited that they're finally doing good this year!
I'm hoping Leafs play the Canadiens in the playoffs! If that happened I would watch all the matches.