If you're still looking for rules to follow, you're in luck! Here's another one. But I think you're missing the point. There are websites where photographers will argue the benefits of one method over another with images to support their arguments. But if you look at the Golden Segment, and then at the rule of thirds, you'll see they're pretty close to the same thing. It's the idea that matters. Don't just frame everything centrally. Experiment. Move your subject in your frame. Shoot it a couple of different ways. Vary your approach, and be mindful about it. It'll make for more interesting photos. And once in a while you're even going to find that a centrally framed, evenly balanced composition is exactly what the scene calls for. And all these rules go right out the window.