Are you looking for tutorials for your looper model? Or in general?

Or try this:

https://rolandcorp.com.au/blog/beginners-guide-to-looping

https://guitargearfinder.com/lessons/use-looper-pedal-basics/

https://midnightmusic.com.au/2014/06/a-quick-guide-to-the-art-of-live-looping/

https://www.justinguitar.com/guitar-lessons/how-to-use-a-looper-pedal-fx-402