My starting choice for 2018:
Node Cookbook - Third Edition: Actionable solutions for the full spectrum of Node.js 8 development - this book has good recommendations on multiple sites and also covers advanced topics on node.js
Node.js Design Patterns by Mario Casciaro - i'v read this book once, but is extremely super strong and didn't get all the examples so need to read it once more.
Node.js for Embedded Systems: Using Web Technologies to Build Connected Devices 1st Edition by Patrick Mulder - IoT it is a hot trend want to be able to satisfy the market if needed.
Important advice! When your read a programming book experiment with the examples and try to understand them, there is not much point in reading it like literature.
If anyone can recommend a strong book on node.js I'l be very thankful.
Even if am not a big fan of udemy or other learning platforms, usually a course is a very good starter, and in kubernetes I am complete noob so it's ok.
As for practice we are building a quite complex system for one of our french customers, so there I'l be able to experiment and implement a micro-service oriented system.
Also I am opened to good start-up ideas, even the vast majority of my startups failed, they were an invaluable source of experience.