If you live in a very hot climate, you might consider 20W-50. If you live in a very cold climate, 5W-30 might be a better choice for easier starting.
Always check your owner's manual. It will have the manufacturer's specific recommendations based on your car's condition and the climate you live in. This is the most reliable source of information. If you don't have the manual, you can often find a digital copy online.
Using the wrong oil weight can harm your engine, so it's crucial to use the correct one. Also, remember to use the correct oil type (likely API service classification SG or later – again check your manual).