Rotating an object

Hello Unity Answers, I am trying to create a script to rotate my model as I turn.
I got some code from Here And it works great after changing the rotation to the Y axis except the fact that it returns the rotation to 0, 0, 0. Is there a way I can edit it to where the return position is 0, 90, 0? I tried adding an if statement for turning the model then an else statement to set it to 0, 90, 0

Edit: Here is the code I have, it’s essentially the same as linked above

public float smooth = 2.0F;
    public float tiltAngle = 30.0F;
    void Update() {

        float tiltAroundY = Input.GetAxis("Horizontal") * tiltAngle;
        Quaternion target = Quaternion.Euler(0, TiltAroundY, 0);
        transform.rotation = Quaternion.Slerp(transform.rotation, target, Time.deltaTime * smooth);
    }

Hi, ok this is a quick answer but this is significant.

“Quaternion target = Quaternion.Euler(0, TiltAroundY, 0);”

try this,

//or use a FixedUpdate 
void Update () 
{
   private float horiz = Input.GetAxis("Horizontal") * tiltAngle;
   transform.Rotate(new Vector3(0,horiz ,0), Space.Self);
}

Add 90 degrees to default angle: Quaternion.Euler(0, tiltAroundY +90, 0);

public float smooth = 2.0F;
    public float tiltAngle = 30.0F;
    void Update() {
 
        float tiltAroundY = Input.GetAxis("Horizontal") * tiltAngle;
        Quaternion target = Quaternion.Euler(0, tiltAroundY +90, 0);
        transform.rotation = Quaternion.Slerp(transform.rotation, target, Time.deltaTime * smooth);
    }

…or make empty gameobject as parent and current gameobject as child with (0,90,0) rotation. Rotate parent.