

Honestly, if you’re having trouble finding stuff for vanilla JS, I’d recommend looking at jQuery. Not that you should USE jQuery, necessarily, but the library is basically a giant wrapper around all the native JS APIs, so the approach to building stuff is essentially the same: it all focuses on tracking and manipulation of DOM elements.
I do vanilla JS (actually TypeScript) dev at work, daily, and that was my big takeaway from spearheding our team’s migration from jQuery to vanilla TypeScript: I honestly don’t know what benefit jQuery provides, over vanilla, because all the most-common jQuery APIs that we were using have a 1:1 native equivalent.
We do also use 2 third-party libraries alongside vanilla, so I’l mention those: require.js and rx.js. Require you probably don’t need, with modern JS having bundling and module support built-in but we still use it for legacy reasons. But rx.js is a huge recommend, for me. Reactive programming is the IDEAL way to build GUIs, in my opinion.
Por que, no los dos?