Sui Generis model

https://www.fastcompany.com/3056856/these-tech-entrepreneurs-want-to-create-a-network-of-private-micro-states-in-europe
In their city-states, no one would pay income or sales tax. Instead, each resident would contribute a certain number of hours each week to volunteer for the community—from elder care to helping build 3-D-printed houses for the city—and in exchange, everyone would be given a basic income large enough to cover rent and other living expenses.
Dumas envisions a network of “corporate socialist” utopian societies — built on a foundation of economic freedom, transhumanist ideals, and fun — erected on land shared by existing nations in exchange for a cut of the profits. - [1]

OSE Preferred Model

See OSE Campus
A company town, with the meaning of company town completely turned upside down - but retaining only the entrepreneurial social contract which addresses effective productivity
People collaborate on a common vision of solving all pressing world issues as an embodiment of highest personal evolution and growth mindset. Understool evolution is once we extinguish all emergencies, we have a chance to work more creatively.
People are generally expected to collaborate in order to keep building community and and provide local needs, and there is a "penalty" for non-collaboration in the form of buying yourself out from a certain common activity. Social reputation system makes this all transparent.