Well for those of us her in The Golden State, we have had a forum called CALGUNS.NET for a long time but the infrastructure was neglected pretty bad. Trying to update it has resulted in it being down for almost a week and counting.
Someone, with the encouragement of the Redit universe, created a new community called CAGUNS.NET and it is taking off like a rocket - https://caguns.net/
So if you are looking for a forum that is dedicated to the 2A issues unique to California, check it out.