I wish the answer was so simple. Many things have to be known.
Where are you fishing, bay, ocean, sandy, rocky, shallow, deep, 2-4-6-8-10-12 oz sinkers, small boat, party boat, close to water, high above the water, slow current, fast current, do you like fiberglass, graphite or composite rods, mono or synthetic lines?
Not trying to be funny but these are questions you have to think about. There are maybe 5 different types rods that could be suggested in the above group.
I like to fish very light for flounders and as light as I can for fluke.