Here is the thing, there are a lot of budget ones, and a few expensive ones.
There is a significant difference in quality, but its important to know how much you actually play car/racing games.
For example, I didnt get myself a wheel because I play them too little to pay for an expensive toy Id bearly use.
https://www.youtube.com/watch?v=ZTXF3Dtt5y0
Here is some of the better options.
I would not go with a very budget wheel, only because I have one already (won it as a prize) and I prefer to use keyboard than it (the reason is that cheap wheels are not accurate enough to use them normally).