I made a new guide about some advance things. It is still a work in progress, and I hope you learn some things. I will also keep on adding new things to the guide, so I still have many things to add to this guide. If you could help me out with other advance techs you know, I would appreciate it a lot!
https://smashboards.com/guides/smash-ultimate-mechanics-for-beginners.1188/
https://smashboards.com/guides/smash-ultimate-mechanics-for-beginners.1188/