I'm in a fleet shard from December 2017. Current top 25 (updated Jan 2023):
FIST Hersh Bethens
Ark the Mad
The fleet shard chat has been up and running for many years now.
If you are interested in joining the fleet shard chat, message me here with your in-game name and current rank 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.