Are there any flying schools in Canada for pursuing commercial pilot training?

Yes. Here is a list of the best flying schools in Canada:
1. Canadian Aviation College

2. Academy of Aeronautics

3. Winnipeg Aviation

4. Winnipeg Aviation

5. Air-Hart Aviation

6. Smiths Falls Flying Club

7. Windsor Flying Club

8. Cornwall Aviation

9. Owen Sound Flight Services

10. Academy of Aeronautics

Hope this helps!