I think the easiest way to pick a niche is to start with something you actually enjoy or know a bit about, because it makes creating content way less stressful. In my experience, it also helps to check if people are searching for it but the competition isn’t too crazy. Try to focus on solving simple problems people have, and stick to helpful, honest content that’s what works best with white hat SEO. It might feel slow at first, but it builds trust over time.