If you are practicing within Tradition, your High Priestess will tell you when you are ready and should guide you through the initial steps. Each tradition has a different way of handling this, so it’s best to check your upline.
For an eclectic coven, there are really no rules. that said, I’d recommend starting with a study group. Invite members to share what works for them, study together as a group, begin developing rituals you can work together, etc. You may find that while Odin works well for you as a solitary, the group mind is called to work with Frey & Freya, or Innana & Tammuz!
I would suggest starting with a study group. Don’t fashion yourself as a “teacher” or “leader” but more as an “organizer”. A show-and-tell style study group is often enjoyable and enlightening for all involved. I myself started a group like this years ago. We came together as a group of pagans who had an interest in learning more, and each wrote something we were interested in on a slip of paper, then we shared these as “go study and bring back findings to the group”. We scheduled 2-3 presentations per meeting and a short open (very ecclectic) circle. This worked quite well for several years and spawned a few “offshoot” groups.
Over time, you may find that a core group who ritual together are forming bonds that go beyond the study group. Now it is time to consider covening. This usually means taking some sort of oath and working to form a group mind. Once that group mind is developed, you (and the group) will want to be very careful about comings and goings, as the coven becomes an entity of it’s own, and the entire personality of the coven can change when a member enters or leaves the coven (permanently–missing one or two circles, having the occasional guest doesn’t cause much change.)