Quote Originally Posted by redietz View Post
The non-slip mono loop (http://www.netknots.com/fishing_knot...lip-loop-knot/) is really just a variation on the bowline with a few extra turns to make sure it doesn't slip.
About a good as you can get right here, in a non-slip, STRONG knot!

Next would be the Uni Knot - great knot -but it's not a loop-type per the O.P.'s request.