There are plenty of fancy exercise machines on that market that take a lot of space. You don’t always need a giant machine to work your body hard. Take the X3S Pro for instance: it is a simple device that works your abs, legs, and core in general. You can add dumbbells or medicine balls to increase the intensity.
The X3S is a full-body trainer that helps you work your way up to full stand-up position using the right muscles. It doesn’t take a lot of space either.