Trying to find a family doctor is not easy these days. We are at the mercy of doctors willing to take on new patients. It is harder in more urban environments. Many doctors are not keen on taking on new patients, yet we as the public want someone who is trust worthy, concerned, and interested, aside from willing to accept a new patient.
To find a doctor in Ontario go to http://www.cpso.on.ca/ and browse for a doctor. This site lists all the doctor available. The best way to find a doctor is to get referred by someone who knows the doctor is willing to take you on.
Good luck