To find the correct fluid, you must consult your owner's manual. The manual will specify the exact type of fluid recommended by the manufacturer (e.g., ATF+4, a specific Mopar fluid, or a specific type of power steering fluid). Using the wrong fluid can damage your power steering system.
You can also check the power steering fluid reservoir itself; there might be a label on it indicating the recommended fluid type. However, the owner's manual is the definitive source.