These days people prefer to live either in suburbia in Mediterranean climate or in old capitals (think Paris and London). That's a definite trend - we no longer have colonization of new spaces, we instead have consolidation in known good places.

One can perhaps start a commune in a forest or on an island even today, with handpicked people, but it doesn't happen.

Wanting to flee from Earth with all its problems is understandable, but I fear that we'll repeat a lot of bad stuff in habitats. Think totalitarian cults, slavery, plain old totalitarism.