A mix of potting soil and chunky bark and/or perlite is great for aroids and tropicals like a monstera deliciosa. I mix potting mix for my tropical houseplants with bark 70/30 or up to 50/50 depending on the plant type and the pot size.
It depends on your temperatures. If it's good and warm you could grow this in anything, including heavy clay. It is about the least picky house plant you can imagine. I grow it in a perlite-bagged potting soil mixture to make the pot lighter, but it will do just fine in the cheapest bagged potting soil you can buy. Remember to fertilize it.
__________________ May the bridges I've burned light my way.
I agree. I intentionally abandoned mine outside in the fall of 2021. I was tired of dealing with it’s growth habit, it took up too much space, and I just didn’t like it anymore. It survived (progressively dying) with almost no attention from me and I just tossed it a couple weeks ago. It was still alive, but barely. They’re way harder than many give them credit for.