ACE Chess Study Group
FIDE Arbiter and Organiser Adam Raoof's group for those attending his study sessions - https://chesscircuit.substack.com/p/improve-your-chess is my free newsletter
I also organise tournaments on the Tornelo platform - https://tornelo.com/chess/orgs/chess-england/
You can read about them here - https://www.chessengland.com/