I’d like to repeal the 17th amendment so the senators would be put back under the control of the states.
I doubt you could ever get the people to give up their vote for senator but maybe we could get rid of statewide popular votes for senator. Go with an electoral type of system within the states where the senator who wins most districts goes to Washington.
I’d suggest that as a start, each State select one Senator in a popular Election and that the other be selected by and serve at the desecration of the State Legislature.