The best school is a real game practice. You need to learn basic things like bankroll management and poker math — you don’t need schools, it’s common information in books, articles, and so on.
Unfortunately, poker schools are now just empty words for your money. You will retell well-known things with a wise lookThe second option is schools where you will be taught bad things, such as team play, bot (scripts), etc. Note that poker is not only white and fluffy, but also dirty and criminal. And he also needs fresh recruits for dark deeds. And yes, they can win.