The Logitech G29 (or G920) is the racing wheel that I would recommend over any other at this time. The Logitech wheels are relatively inexpensive and incredibly stable, precise, and durable. Read more about the Logitech G29 Racing Wheel.
The biggest difference between the Logitech G29 and the G920 is that the G29 is designed for either PC or PlayStation and the G920 is designed for either PC or Xbox One. The G29 has more buttons than the G920. Read more about the Logitech G920 Racing Wheel.