Gaddafi's green book is the only political theory I suggest people read.
The country only had 5 million people and the society was mostly homogeneous and shared the same religious principles.
But it's the only model for direct democracy that has been tested on that scale that I like.
Gaddafi himself was a general, his other roles were all ceremonial and foreign relations stuff.
Get past the whole cult of personality part.
It was the most democratic country on earth, the money and natural resources were owned by the citizens.
Political parties outlawed.
Decisions were all made at the local level, it worked like jury duty, people would be asked to serve terms governing and volunteer for a term if they accepted.
The central government collecting revenue on behalf of citizens through nationalised resources, and distributing the money (which was also nationalised) back to the citizens as the owners of the natural resources being sold.
Free healthcare free education for all citizens, subsidies for married couples to buy a family home, subsidies for anyone that wanted to become a farmer or contribute to industry.
A strong military to defend against external threats, unfortunately Libya's wasn't strong enough on its own against Israel KSA USA and France.