What do you mean by “work”?
Fascism doesn’t work. Socialism doesn’t work. Communism doesn’t work. Democracy doesn’t work (and is basically communism of a sort anyway– based on “to each according to his need” of power over others, rather than of property). A republic doesn’t work– it always becomes a democracy. Constitutions don’t work. “Rule of law” doesn’t work.
The unkind truth is that government– attempting to govern anyone but yourself– doesn’t work. The reason being that statism, the fundamental belief which leads to the attempt to govern others, doesn’t work.
Unless your goal is slavery, death, and destruction, in which case, they all work just fine.
I hear the government extremists whining “Anarchy won’t work either“, and they are kind of right. Anarchy won’t work… if you try to turn it into some form of “system” for “governing”. (Of course, it then immediately ceases to be anarchy.) That’s because governing others is always a failure. Sooner or later– and the later the failure smashes into your reality, the worse it will be.
You can successfully govern yourself (or you can fail at that, too), but you can never truly successfully govern others. It doesn’t matter how big your gang of bullies (military or police) is. If you are trying to govern others, you have already failed. Taking the government side is failure.