If the eye of the hook is large enough to permit passing the line through twice the Palomar knot is easy and reliable. It's the know demostrated on the sheet of paper with most spools of line I have purchased. For anything below a size 14, forget it.
If you can find a pattern that will compete with live crickets, publish the pattern, buy all you can afford, corner the market. I know people across and from the Magnolia state that will pay whatever is necessary for such a lure.