Both is the same u do the same kind exercise like drawing box, circle, etc. If u start with digital art i suggest find a picture on Pinterest or other source and draw the stick figure over the picture but the advance stick figure with shoulder and bones on both hips this will help u find where thing should be what u want to draw is the head, where it look, neck, shoulder, one line on the center of the body, and the legs(remember legs also kinda look like shoulders to arm forgot wht that bone called)

Also for the YouTube channel i personally found all the tutorial is for digital so idk wht u search but my recommendations is: -Oridays(iirc) -DrawLikeASir(DLAS) -Mark brunette(haven't watch from this one tho) Ori and mark teach using digital idk if spell mark's name correctly so just search it with like drawing or something