Carefully ask yourself the question, why do you want to START a community, as opposed to joining one already in existence or in the process of formation? A perusal of a site like www.ic.org will show you many, many communities already out there, many with just a few people and in need of help. These are also your best resource if you are intent on the plan of starting one....it would be a wise move for you and any other interested parties to make a tour of communities in your area, "to see how they do it".
One idea from my own
experience of living in community settings of various kinds most of my adult life (two of which blew up in my face!)....it seems to work better to find and build the core group of interested people, and with them work on visioning, communication skills, and "invisible structures" in general, and then later think about acquiring property together. Far too many communities are "started" by a person or a couple with land already in possession as private property, and without very careful documents, with legal power behind them, that give newcomers, at some point, a secure stakehold, on whatever terms, you end up with "founders syndrome" and a modern equivalent of feudalism.....