If money is tight, but you want all the features: Fanarec Carrera Wheel.
If you want to buy it in a shop and not wait for delivery and want full GT support but can miss out on some features (clutch + h - shift: DFGT
If you want the best wheels money can buy: G27, Fanatec GT3 v2 or GT2 if you want to use it on an xbox.
If want full GT support but can miss out on some features for now and want a high end wheel: the Thrustmaster T500.
Google them all, the internet has lots or reviews and price guides on them!