I want to go to Canada to attend high school. I don't know which provincial education bureau is better.

Don't think abroad with domestic thinking. Public schools in democratic countries are all the same. If there are good schools, it is mainly because children in China go to many schools, and children in China try to make that school more famous. I suggest you go to a public school without China people (a school in a densely populated area in the western suburbs, not in the city) and live in a homestay. Although you are very tired at first, you will soon integrate into the local area, which will be of great help to your future language learning and job hunting. Never go to a school in Vancouver or Toronto, where there are too many people in China. You didn't learn English, but you slipped out of domestic dialects such as Cantonese. That's where you took your parents to live after you achieved something, not where you are going now, remember. You can go to public schools in any province. Schools in the central province are more likely to meet the needs of people without China, and the cost of living in the city in the central province is much less than that in Vancouver and Toronto.