Palms prefer light, well-drained soil that is rich in organic matter. You can choose from a wide variety of indoor palm plant soils to find the one that works best for your plants. If you want indoor palm plant soil that stays lightweight, consider using bonsai soil with special ingredients to hold onto moisture.
You can also create a "soil sandwich" by using a bonsai mix between two layers of indoor palm soil. This helps to ensure roots don't become waterlogged or compacted in a pot with heavy soil.