ll never be great. But it could still be fun. AC is a real sim game, so it could just be that you have to get used to it coming from a more simcade like GT. I personally way prefer the feeling of ACC over AC, it's the most realistic, but only has GT cars. Forza Motorsport is somewhat like Gran Turismo, but more to the arcade site of simcade, the last one, 7, is no longer in the store, but you can still buy a key. The next one is coming out in october.
On the serious sim side there are great suggestions in the comments, but it's important to know that they will feel different than GT. And if your wheel shakes too much, it might be that you have the ffb on your wheel is set too strong