I'm in a fleet shard from December 2017. Current top 25 (updated May 2020):
The fleet shard chat has been up and running for years now.
If you are interested in joining the fleet shard chat, message me here with your in-game name, current rank, and fleet payout time in UTC so I can identify you and send you an invite. Please make sure that this is really your shard and that you want to join the fleet chat before contacting me.