Just reading up on Clapton FC, a new breed of non league football club (founded in 1878) who take a no nonsense approach to supporting - the "Clapton Ultras" being formed of fans fed up with the modern game and the average fans who watches it.
https://www.theguardian.com/football/2015/sep/10/clapton-ultras-anti-fascist-essex-senior-league-football
Then of course there's Dulwich Hamlet, famous for playing in pink and where the fans crack open craft beers while watching the match.
https://www.theguardian.com/global/2015/aug/23/dulwich-hamlet-londons-most-hipster-football-club
Are there any others? Have to say its almost enough to tempt me back into attending matches more regularly.