I only know ONE
I put the line thru the jig eye -- pinch the tag end & main line together -- make a loop with the doubled lines -- pass the jig thru that loop TWICE -- cinch the lines down while maneuvering the knot up/down the lines to make the loop as big or small as I want it.
I use loop knots ONLY on my double jig rigs for Livescope flippin' ... and most times just for the upper jig. I use a Improved Clinch knot for the lower jig, so that the lower jig's loop doesn't hang on the brush, and I keep the upper jig's loop well away from the brush. If I need to get a jig DOWN IN the brush I switch to my secondary rod, which has a weedless jighead tied on.