A useful distinction I think would be the left libertarian take on ownership. Whilst some left libertarians might agree that there is alot of utility in the effectiveness of ‘market signals’, and that denying people to right to certain forms of trade borders on illegitimate control, most have very left wing views on the ownership of resources, land, means of production etc, from hillel steiner’s view that no land/resources can be fully privately owned, to some left libertarians advocation of co-operatives and worker owned means of production.