You probably can't. You need to rely on knowledge of others to identify good resources. And then lean that against how you learn in order to pick the best resource for you.Same for verifying being an "expert beginner". Never be the smartest person in the room if your goal is to grow.
In a crude way: google it. You'll probably get a generic (maybe even horrible AI slop) on top. But you're not looking for a perfect guide on first Google (not unless you have a very popular topic). Look for terms used and start googling those to narrow down to a more specific place. Maybe a forum post full of (hopefully) competent+ people answering your question. Maybe you find a quality guide to follow. Maybe you find you're on a completely wrong rabbit hole and figure out better terms to Google.
That's basically half my learning while on the job. Usually works pretty well in my personal time too.