There are lots of awesome people to follow on twitter like Kent C. Dodds, getify, Wes Bos, Tyler McGinnis, Brendan Eich, Nicolás Bevacqua, johnlindquist and his egghead.io's twitter channel, Nicholas C. Zakas, Axel Rauschmayer, <insert another awesome guy/girl here>.
Medium is another great place (I see you are already following JavaScript Scene) to find interesting materials about JavaScript. After their last major update and redesign, I'm enjoying it even more. Following tags like Coding, Development, JavaScript, ReactJS, NodeJS was enough to discover tons of incredible content. My mornings start with Medium and a cup of coffee now (soo classy).
I can also suggest checking JavaScript Air broadcast. I was not a big fan of watching videos of people chatting about programming (that's why I find it difficult to listen a whole podcast from start to finish), but JavaScript Air changed me (literally). JA is a hour long, weekly podcast about everything new and hot about JavaScript, from some of the most talented people in the JavaScript community. Kudos to Kent C. Dodds.
Something that worked out great for me was subscribing to a couple of newsletters and RSS feeds - JavaScript Kicks, 2ality, ponyfoo, Sitepoint's Versioning, Front End Front to name a few. Utilizing and using email newsletters is the best thing you can do to save yourself time and nerves.