I've found Interactive Brokers to be rather unfriendly for long term investing due to their minimum monthly activity fees though.

But to be fair, they do advertise themselves as a platform for active traders, and the monthly minimums can be waived with a large enough account. I don't qualify for the latter yet, but once I do I'll probably switch over to IB if Robinhood isn't in Canada by then (You can't really beat free).