Where exactly are you in Southern Ontario? There's flight schools just about everywhere. Future Air has bases in Collingwood and Barrie and there's Spectrum Airways at Burlington plus there's Guelph and K-W. Lots of choice. Go hang out in the pilot lounges for a day and talk to people.
Airports under the Pearson Class C get stuck with longer transits to practise areas. Those with towers can get you stuck in queues on busy days, i.e. weekends.
Some of it depends on the flying you plan to do. Do you have the budget to fly for personal transportation?
There's also gliders. The keeners in our club get turned loose cross-country in a couple of years and you get to start dropping in on farmers
