What tine of year did you go to St Lawrence Outfitters?
They seems like a pretty good option when I did my search
March/April for spring snows. The birds are very weather dependent. Can be feast or famine.
November/December for fall snows.
Ontario snow geese can be tough at the best of times. I have hunted ON and northern NY quite a bit. Some good shoots but lots of slow days. I'm going to MB this spring to get into them good.
you want to have fun near quebec city try that:
h t t p s ://www.canada.ca/en/environment-climate-change/services/national-wildlife-areas/locations/cap-tourmente.html#toc5
little known but great area if you re drawn ...