With the S-63 plug-in for OpenCPN
you can use the Canadian ENCs (vector format). These are relatively expensive, I fear.
At the ChartWorld shop there are collections of Navionics
based, S63 encoded charts available. These charts are getting updated once per year.
I had a look for the Med sets and at at first glance cherry-picking single
charts from the Hydrographic Offices looks more interesting for me.
There is a 150€ Canadian WestCoast packet in these group.
Perhaps this one might be a choice. Local users may have an opinion about this material.
As an addition you can add singular Canadian ENCs then - case you need some area with the latest available updates. Select in this case the "3 months licence period". This brings cost down.