Rapalas, Mepps spinners, and all sorts of other hard baits is really a little too vague to offer much help with what you have.
Rapalas of all kinds and Mepps spinners are good lures. Crankbaits (from shallow to deep) are good lures. Spinnerbaits are good lures. Topwater baits are good lures. Jigs are good lures. Plastics baits are good lures. Swimbaits are good lures. There are many good lures out there. What a "GOOD" lure is for you very much depends on many things including as Stasher1 said, a good understanding of how and when to use them.
My goto baits are plastics and jigs. That covers a huge variety of baits, conditions, and techniques. Texas rigging those powerworms with or without a weight might surprise you.
My advice is spend a little time reading to understand the basics of bass fishing, or find someone to teach you these things. There really are no magic baits, and no substitute for knowledge and experience. There are many articles on this site that will answer some of your questions. There are many here who are happy to answer specific questions on different baits and techniques. Good luck.
Edit: Welcome to the Forum.