I use many methods. Super glue works good and even better when it has even a light thread base to adhere to. I have used a thread bump on the shank as well that works well with my Itty bitty slab slayer but is a bit much for the swimmers, they do better with just glue. I also have some. That deepfry made me with a light leader wire keeper akin to what the Japanese use and that works excellent. They’re tedious to do but there’s little better. The lightest leader wire you can find works fine. Double it over and add the kink to keep it off the shank a bit and tie it toe shank in your tying vise, then add some Sally’s or up resin if you like. Super glue would also work. The tiny baits and a straight shank is about the best with super glue gel. Not much of the glue holds the shank but the glue to the head is pretty tough if done ahead of time and let dry completely.