My preferred approach is to break the two-party system, which can happen in a couple ways:

• end FPTP voting - implement something like STAR or Approval voting instead
• proportional representation in the House - i.e. no more House districts, your chosen party would instead get X seats based on percent of votes; who gets elected would be chosen by a primary vote (i.e. Approval voting statewide, top X get House seats)

If no party has a majority, parties would be forced to form coalitions, which could lead to more collaboration instead of the constant push/pull we have now where parties often wait until they have control again so they don't need to compromise.