Spanwekewkwel

A combination of 

"The first obvious alternative to Communism comes from the split in the first international between Marx and Mikhail Bakunin, the latter being so critical of Marx's 'authoritarian socialism' that he got expelled by Marx. Bakunin and Pierre-Joseph Proudhon were the first serious anarchist theorists.

If you want particularly zany options, you may wish to read Gaddafi's 'Third Universal Theory' found in his little 'Green Book'. Another unusual one is Howard Scott, who created the 'Technocracy Movement', which was briefly popular in 1930s America.

And if you want the most extreme example of unusual thinking, perhaps there's no more morbid than Pentti Linkola, who advocates massive human population decline through voluntary or genocidal means under an ecological dictatorship.

As for why there is such a dearth of political imagination, this seems because many events in the last century have caused crisis of faith with so many institutions and ideologies that it has produced an unfortunate nihilistic malaise (I'm citing an answer I did about nihilism here because it's quite a big answer in itself).

Add to this the fact American media dominates the world, and many Americans believe themselves the final state of humanity. At least, if they didn't, there would never have been essays like 'The End of History' after the collapse of the USSR."

AND:

Libertarian '*Communist' Municipalism 

'Libertarian *Communist' here means anti-state next to a USSR symbol