Tons of videos that i do saw about how to use stop loss specially on crypto.
These are the only ones i do see for me to easy to understand (for me).

https://www.youtube.com/watch?v=v3qqpN4mAr4
https://www.youtube.com/watch?v=g1TQpE6Y-Pw

Yeah, same person but different timeframe but the same topic. Stop loss would be that only relevant if you are really that making some price action or day trading
kind of path when it comes to trading on which it will be needed for you to set SL's if specially you are dealing with futures or higher leverage
or even on typical spot position, you will be finding this to be relevant.