I would love to fly out to SLC and rent a car and head up to Yellowstone and make a loop into the Dakotas to see Custer State Park and the buffalo, Mt Rushmore then head west to Washington and Oregon, then the only state I wouldn’t have visted is Hawaii.
That would be a great trip. Many states I have not visited. I have been to Hawaii though. Lovely and each island I visited gas its own “thing” I like.