If we were stuck on a desert island with two lures, one would be a sabiki for bait, and the other a bucktail jig.
John Skinner on YouTube is a great resource and one of the people that put fairly consistent content onto the world's most popular source for videos. This one's about using bucktail jigs - in this case for Flounder. The techniques he shares will work for any of our target fish besides flounder as well. What they call "Summer" flounder up north are the fish we catch all year year in Florida. They call them Fluke, too.