Looking for experienced mentor/team

Hello. I am looking for a mentor who has lots of experience or a team that all together can help me grow as a player in skill and possibly friendship. So far I main a mid lane Kennen and am level 5 with him. I am a level 22 summoner at the time of posting. I would like to be able to learn not only how to play in the other lanes but be able to work on what works best for me in champions and playing. I need help figuring out what champions to use and the more advanced ideas behind the game. My in game name that you can friend me at is RedNightDragon12. I thank you all for any help.