STUDY RELATED HELP REQUIRED!

I used to study in a cbse school until 10th, and I easily scored 91.4% in boards all thanks to those youtube channels such as next toppers and Ashu Ghai, but now I have switched to ISC and I am really confused if I should still refer to those videos which were made generally for CBSE students, if not are there any good youtube channel for ISC based studies?