If you find a few you really like it might help you to speak with some of the covens members to see if it would be a good fit. There are many wonderful covens here that are very active and with knowledgeable members.
Keep in mind a coven can be like a family and many of them choose to be very selective about the new members they take in. This helps keep the group close and running smoothly for some groups.
Good luck and happy hunting.