Liberalism is really the only game in town, and that has been so since the collapse of monarchies and the creation of the USA. This is because liberalism is nothing more than the name given to the symptoms of De Jouvenel’s high-low mechanism. It has followed a straight line of power organised destruction of intermediary powers, with botched and confused reactions against this individualisation coming in the form of Fascism and Communism. All ideology has been selected by this mechanism.
All other concocted explanations of what is right and left wing are pointless, stupid, arbitrary devices. They contain nothing of value, and cannot explain a thing. They are pure quackery. If De Jouvenel is not your starting point, then you opinions on political theory are less than worthless, as you are wasting time with useless concepts.