We've tried so many soils in the past, from pre-made citrus and cactus mixes to 5-1-1 mixes of pine bark, peat moss, and perlite. Nowadays we find it so much easier to just use plain top soil or if you want something lighter, a 50/50 blend of potting mix and sand or potting mix and perlite.
https://themulberries.org/