Random selection from the citizenry.

Such an idea is anathema to Enlightenment liberalism. 'But what if we make a homeless bum God-king bluh bluh bluh'.

But look: if you idiots were any good at designing a society then randomly selecting some schlub and getting a philosopher king only slightly less competent than a certified genius should be peanuts. It's been several centuries of Enlightenment liberalism's hegemony and they have only gotten more smug about their lack of ability to uplift society's lowest.