All of these already exist

Quantum Communalism

So using the word "quantum" as in "discrete" then this is just... every commune is its own nation or something? Just have like 100,000 country-communes across the planet?

Crypto-Conservative Futurism

Elon Musk.

Algorithmic Agrarianism

Essentially just high-tech farming communities.

Neo-Viking Libertarianism

Up-to-date Nazi fascism, more or less. Or if we're assuming it would be actually libertarian as hypothetically described by its supporters, then just a society that is constantly cosplaying as Vikings, perhaps futuristic ones, with the American political system.

Eco-Anarchist Techno-Mysticism

I really like this one. Debating becoming this now. I imagine it would be a society that has like, pagan or druidic rituals with plenty of nature and recycling and so on, but people connect via the internet to engage with it, and the internet itself is seen as this spiritual invisible force... but also in an anarchic society.

Post-Postmodern Monarchism

I first read this as "post-postmodern modernism" which would be a pretty funny ideology by itself. Defining post-postmodernism is a task in itself, but it's far from impossible that we could see this in a Gulf Monarchy eventually.

Biopunk Municipalism

A bunch of cities made of flesh and blood. I dig it.

Cosmic Nihilist Syndicalism

This one is hilarious. Like, oh yeah, all power to the workers and all that, but... what's even the point, when we're so small compared to the universe? I don't think this could work as official policy of a society but there have definitely been people who have had this ideology before.

Afrofuturist Agrarian Anarchy

Didn't Marvel do this?

Techno-Druidic Libertarianism

Similar to Eco-Anarchist Techno-Mysticism.

Post-Industrial Nomadic Collectivism

This is literally what the United States will turn into after balkanisation and massive climate disasters.