Church of Bahamut

I'm preparing a campaign that will largely take place on the Sword Coast and surrounding regions. It depends on the characters the players create and their decisions, but one thing is clear: Bahamut will play a significant role in the long run. I want to start laying the groundwork for his cult, but the problem is, I've found almost no information about it. I know I'm the DM and can run it as I see fit, but I'd like to know if there's ever been any official information about how his cult works or anything related to it.