How about approval voting?

If you have followed the beginning of the US primaries – and hell, it’s been hard to avoid – you probably couldn’t help thinking whether this is really the best way to select a candidate. With so many candidates still in the race, votes quickly become tactical rather than reflecting people’s true affinities. People start reasoning, say, «I prefer Warren, but her chances are slim, so I go with Buttigieg to make sure Bloomberg doesn’t win.» And so, the results don’t necessarily reflect how much support each candidate has. Approval voting would fix this: You don’t pick one candidate, but as many as you like. Someone might not be most people’s top choice, but have the broadest support and thus be the ideal consensus candidate.