There are a few different waxes you can use to make candles. Paraffin wax is cheap and easy to work with, but it's not super eco-friendly. Soy wax is made from soybean oil and is a more sustainable option, but it has a lower melting point, so it might not hold its shape as well in hot weather. Beeswax is a natural wax made by bees and it's a bit pricier, but it burns cleanly and has a long burn time. Palm wax and coconut wax both have high melting points and are good for making pillars and votives. They also have a creamy, opaque appearance and a slow burn time. Ultimately, it all comes down to your preferences and what type of candle you want to make. Just think about the burn time, fragrance, color, and environmental impact of each wax before deciding.