You want to learn a new skill, say piano, Spanish, or video editing, and you're stuck comparing courses, apps, and teachers. You've got maybe six tabs open and you still can't tell which one is "the right one."
You won't know that until you've used one for a couple weeks. The information you're waiting for only shows up after you start.
So pick the one with the most decent reviews, commit to 14 days, and write down the date you'll re-evaluate. If it's bad, you lost two weeks and now you know what you actually need from the next one. That's a way better deal than another month of research.
What's the one skill you've been researching the longest, and what's the one thing stopping you from picking a course today?