Once you have a study permit, bringing your family along generally follows this path:
- Apply for a Spousal Open Work Permit (SOWP) for your spouse. This lets them work for almost any employer in Canada while you study.
- Apply for a study permit for your child (or a visitor visa, depending on age and your plans) so they can join you and attend school.
- Public schooling for your child is free and children are typically enrolled in the public school mapped to your residential address — you don't need to pay tuition for elementary/secondary public school as a study permit holder's dependent.
For Vancouver specifically, no individual school recommendations were given in this thread, so check the local school district's boundary map for your address to find your assigned public school, and consider reaching out to the district directly for enrollment guidance.