I'd recommend trying this website called Boilrplate. It has a list of boilerplate templates on Github for each library (like React, NodeJS, etc).
For React I love create-react-app. I use GatsbyJS for static site generation, and I have a couple base site templates I use (though they have some in their docs). next.js is also very good for simplified React SSR as well. There are quite a few Redux starter kits out there, but I haven't found one I personally like yet.
For Node, this Hackathon Starter is pretty cool. Comes pre-baked with stuff like social login OAuth. Great code for dissecting or just cloning. I also have a small Node/Express/Mongoose based API that I use as a basis for any quick data-based APIs.