I made this website when I wanted to find a new doctor for a family member, and was shocked that the Health Care Connect provided by the province of Ontario takes over a year to actually connect you to a doctor.
The data comes from the College of Physicians and Surgeons of Ontario. You won't be able to see which doctors have openings, but at least you can get a comprehensive list of the doctors near you so you can call them yourself.
Good luck!
-- Ruth