So, I did a quick search (magnifying glass on the title bar), and didn't come up with much. You've got your work cut out for you as it seems most Canadian college folks want to play in the US. Maybe this works to his advantage. From the articles I read it seems college is significantly less expensive in Canada, and there are some great educational options.
You mentioned your high school and travel coach in your post. Honestly, I think that is the best place to start. They should be somewhat familiar with how it works, and the pros and cons of Canadian college baseball. If they've been doing this for some time they should know the right people, and willing to help out. After all, that is part of what a travel coach should be doing.
Tell your son to keep up the hard work, and please let us know what you find out. Good luck!