2021-6-8 · Best Value: Rockwood Hardwood Lump Charcoal at Amazon. This product is a great value for those who will be doing a lot of grilling or barbecuing. Read Review. Best for Beginners: Cowboy Hardwood Lump Charcoal at Walmart. The charcoal is made from a mix of hardwoods including oak, hickory, and maple. Read Review.