I don't about forming the Coven but David for sure could help the Coven come about in this world. He could even learn etc from them, maybe even leave a few children here
A few months back, I started a faction of force witches called the Nautilus Coven. While it had enough interest to get approved, it ultimately, due to lack of activity and members, suffered and failed as a faction, and I requested it to be archived.
But in short, it has caused me to be a go-to person when it comes to Covens, as I have a general understanding of the force in terms of dark/light and its uses while still being a 'neutral' group.
One of my characters, Vera Rosh, is eligible to be a Force Witch and be involved in some sort of Coven, but to be completely honest, I have zero interest in roleplaying as her.