League of Legends (LoL) Question: Discord To Learn

Hi everyone!

I play to this game since at least 6-7 years without never tryharding a role or a champ but I would like to be better.
It's why I want to learn more about amumu jungle and maokai jungle to grind my knowledge with them.

I was wondering if there is a Discord for otp of those 2 champions to learn faster about clear, strategy and matchups.

Thanks for your help!