land value tax comes from the idea nobody should be able to "own" land, you should rent land. When there's a more profitable use for your land than you are current exploiting, you must give the land up. The UK enjoys things like 99 year leases on land instead of in the US where you "buy" land and own it until the heat death of the universe.
negative wage taxes is like basic income if you make the "negative wage limit" really high. The government pays you because you don't make enough (maybe for reasons outside your control, like all jobs you are qualified for are now done by robots).
Singapore has free computerized centralized healthcare that doesn't cost a million dollars a person-year like in the US.
Estonia lets you get something resembling a "mini passport" with no international recognition (perhaps some cross-EU identity recognition, but no residency benefits), but with legal ties to an Estonian "e-residency" so you can verify your identity online electronically (chipped smart cards verified by government records, etc).