I think we might be a good fit for you. We are a very small active group of players with much experience in mythic+ and raid. I main a frost mage and other players in our community hold vast knowledge of all aspects of the WoW. We would love to help you out where you need. We are building a raid team for 10.1 if you are interested, and we run Mythic+ all the time. Check out our post for more information.