If you own a house but can’t find a house-swap that works, you still have a perfectly good opportunity to actually make some money by renting out your house on Airbnb while you are away. While it may be more effort than it is worth for some people, it is something that people do take advantage of, effectively lowering the cost of their trip while they are enjoying traveling.
One thing to keep in mind is you will need to coordinate the logistics of checking people in and out, cleaning, and other host responsibilities while you are not around. A trusted family member or close friend can make for a good option to help if you decide to try this out.
Resources: Things to consider when renting out your home while you are away.