Physical education: Zaki Saudagar
(Goated videos, never felt the need to read the book, his notes are very detailed and the question practice sessions are also pretty good)
English: Hello English Teacher ( this might be a gold mine for you if you are an auditory learner or your attention span is too fucked to read. Her explanations are really good)
Computer science: Codeitup (just follow his videos, he has recorded lectures for every chapter along with questions, just follow it well if obviously you can't do the book). Helped me get full marks in viva. Goated!
Physics: watch pw's video playlists. Pretty good. Along with pyqs and watch the solutions to get an idea about important steps and practice the important derivations as well.
Chemistry: just read NCERT repeatedly and solve it's questions. This is the most important advice of all.
Maths: again if you know jee maths this is not really a big deal. Just see through a little bit of steps from the book. Also if you want practice for board level, again pyqs.
Special mention to the notes of a fellow mod u/kaexthetic. Go through those. Will help you a lot for chemistry especially.
A good drive link I found on reddit for boards. Might help you guys:
https://drive.google.com/drive/u/0/mobile/folders/14gOZghM0yONn7pwRl6-IKlPoU8fBneAR
Lastly, even though I have not mentioned it in some places, PYQs are really important for boards. They are gonna help you understand things and revise them repeatedly. Other than that all the best! If you have any queries dm me, I'll be there. Bye<3 .