[zozbot234]

> Unless we remove the concept of land ownership, there aren’t many viable alternatives that don’t also have unwanted consequences.

You can assess land rent (there are methods to do this that are quite reliable) and tax away, say, 80% of it, thus leaving in place enough of a market in land that its ordinary function in facilitating exchanges is not impaired. It's quite easy in fact, the main problem is really getting there from here.