I really strongly believe in approval/disapproval with a runoff.

You can vote for or against as many candidates as you want. Take the top 2 score getters and do a runoff. This means in the first round you can have as many candidates as you want. Those with no name recognition get no support. Also it prevents the situation so many find themselves in where both candidates are deeply unpopular but we feel we have no other choices. If the most well known candidates are deeply divisive then they won't get through.

The runoff gives people time to research the 2 candidates.