Exploding Double Carrick Hitch is really good strong knot.
i often use paracords for my game meat. For the animals, I don't want too many scars when they are suspended as too much tissue damage on it's legs affects the texture of the flesh. I make a nice loop to get the legs good for a proper hogtie. Rendering the entity motionless so it won't escape and cause damage to my vehicle when it runs around. Can be applied to anything really, people get really creative with these hogtie knots as you can see here...