Have you established what works in your fishing spots?
There's a couple simple formulas for using minimal amount of rods to able to fish many applications
6'8MF topwater, jerkbait
7'MHF baitcasting for jigs, trigs, plastics, spinnerbaits (all purpose)
7'MHM baitcasting crankbaits
6'8-6'10MXF spinning lighter range all purpose
Usually duplicate the all purpose rods so you have more ready made combos