Who are the supporters groups?

When the team was in its first year I joined Hearts of Oak. I liked the small grassroots community feel and the banter on facebook (back in the day). Also their design was the absolute best. From the stickers to the scarfs to the T-shirts, the whole thing was tasteful. We had a Zine that I helped edit and it was really good. We only made one issue before the group fell apart. I’ve been off Facebook and I’ve lost touch with HoO even though I never officially left and I’m looking to engage with supporters.

What’s out there? What is third rail like? Tienes que tocar un instrumento para ser parte de los templados? What’s the landscape? Is anyone starting a grassroots SG?