Oh Canada! (whistles the national anthem) So we're talking about ranking schools in Ontario. I can suggest a site, one of those conducting such research. It publishes an annual ranking of the province's schools based on student performance and assessments - the gold standard for attentive parents and https://www.chiangraitimes.com/learning/top-universities-in-canada/
The Fraser Institutes analyze schools based on factors such as student achievement, progression levels, and socioeconomic context. All this helps to form an objective opinion about the quality of education that this or that school provides. To be honest, head bowed I wouldn't want to offend schools by publicly calling them high or low in the rankings, so for now, we'll do without specific names here.
However, since we are talking about Canada, it’s worth saying: I hope you are here.