Where are the more-knowledgeable Cardano communities?

Where are the more-knowledgeable Cardano communities?For example, for Ethereum, there are:r_EthFinance for subreddit that's much more knowledgeable than the main Ethereum subEthereum Research for highly-technical Ethereum discussionsFellowship of Ethereum Magicians for EIP and proposal discussionsDiscord for everything elseWhere are the Cardano versions of these if I want to find active communities of really-knowledgeable Cardano experts? The only one that's comparable is our Discord group. The Cardano Forums doesn't really match the expertise, though parts of it are similar in function to low-level Stack Exchange. via /r/cardano https://ift.tt/7ZdCMoR