The other replies do a good job of how to start a group. Once it's formed, do positive things, don't think that a group of 5 people are going to take over the government or that kidnapping some powerful person will get results. Or that maybe if you guys fight Antifa in the street that will turn things around.

Focus on improving each other's lives and making a sustainable system away from the current economy. Buy land, get to know the local cops so they can help prevent the feds from Waco-ing your ass, grow your own food and for fuck's sake, don't sell any guns or start a cult.

Be normal people who are just trying to improve your lives and help the community. You don't hear about the feds fucking with the local Kiwi or VA post. If you form as a subversive group trying to force a revolution, don't be surprised when the people you're trying to subvert try to prevent you from doing so.