Liberals NDP Greens Conservative
Liberals NDP and Greens would never form a government with the Conservatives so the liberals are effectively always in power.
Which means insiders in the liberal party are in charge and voting is partly irrelevant unless you're voting for the conservatives, but they would need an actual straight majority.
The Green party is not a force in Canadian politics,they have one seat and barring radical events will never have another.
Th Bloc has 21 seats, and has had as many as 54. They would certainly ally with the conservatives. (Not the modern maple maga variety, but old school PC).
https://en.wikipedia.org/wiki/Premiership_of_Stephen_Harper
Except for my entire 20s the conservatives were in power, so...
Except with the minority, the NDP got a few of their platform issues through.