Where can I learn about plant training?

So I have just harvested my first grow and although it was successful, I think I could have done SO much better if I had trained and potentially chopped to increase airflow/light. I am hoping someone could please point me in the right direction to a page/video/creator who had done in-depth videos so I can learn as much as possible as I am in the process of germinating my next - and I want to do her justice 🤞 Thanks in advance 🫶