One person, one vote. And I'm that person.
A collection of minarchist courts, keeping each other honest?
Guaranteeing the right to secede, so oppression is very difficult to do on a scale bigger than a town? Which may then be invaded by it's neighbors, because an out of control state is like an out of control fire...
A system like the Icelandic commonwealth? Except we'll have to figure out how to operate the parliament, because I don't think buying and selling seats is going to work. Maybe run it like the Internet - if you want a say, just turn up, and if you want something doing, you have to do it yourself?