I like the lean-to method as well! I will also use cottonballs coated with a little vaseline as a starter when I remember to prep ahead of time! Super effective.

One note: I always check local regulations and use existing fire rings where permitted! I also don't build them in the backcountry anymore, even where permitted! I've found that the risk of starting a fire in a remote location given how bad fire season has been just outweighs the benefit. But, I still roast marshmallows over my backpacking stove and bring twinkle lights to up the ambiance!