Tilt object based on movement and direction

Hi Together,

i am working on a Top-Down Game and i try to implement a kind of gliding functionality. If i jump off a cliff my character starts gliding and slowly sinking. The character moves automatically forward and he is flying in the direction of the joystick. When i do nothing the player is flying straight forward to the actual facingDirection. What i want is that the character tilts left or right if i change the direction. The stronger the direction change is the stronger the tilt. Like in a short hike (a game everyone should try :wink: ).

But i just dont get it how i could do that. Maybe someone can give me a hint. Here my actual code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MovementController : MonoBehaviour
    private float movementSpeed;
    public float baseSpeed = 200.0f;
    public float Sensitivity = 5.0f;
    public float rotationSpeed = 5.0f;

    [HideInInspector] public Vector3 movingDirection = Vector3.zero;
    private Vector3 horizontalDirection;
    private Vector3 verticalDirection;
    private Quaternion facingDirection;

    private Rigidbody rigidbodyPlayer;
    private Vector3 right, forward;
    public float multiplier = 10.0f;

    void Awake()
        rigidbodyPlayer = GetComponent<Rigidbody>();

    private void Start()
        forward = Camera.main.transform.forward;
        forward.y = 0;
        forward = Vector3.Normalize(forward);
        right = Quaternion.Euler(new Vector3(0, 90, 0)) * forward;

        facingDirection = transform.rotation;

    void Update()

    void FixedUpdate()
    //Get the Input for the Movement
    private void GetMovementDirection()
            horizontalDirection = right * Input.GetAxis("Horizontal");
            verticalDirection = forward * Input.GetAxis("Vertical");
            movingDirection = Vector3.Normalize(horizontalDirection + verticalDirection);

            //Speed of movement multiplied by sensitivity for better control
            movementSpeed = Sensitivity * (Mathf.Clamp01(new Vector2(Input.GetAxis("Horizontal"), Input.GetAxis("Vertical")).sqrMagnitude));
    //Move the character according to GetMovementDirection
    private void MoveCharacter()
        //Automatic movement and direction change
        rigidbodyPlayer.AddForce(transform.forward * baseSpeed);
        rigidbodyPlayer.MovePosition(rigidbodyPlayer.position + movingDirection * Time.fixedDeltaTime);

        //Smooth Rotation to moving direction
        if (movingDirection != Vector3.zero)
            facingDirection = Quaternion.LookRotation(movingDirection);

        transform.rotation = Quaternion.Slerp(transform.rotation, facingDirection, Time.deltaTime * movementSpeed);

Any ideas on how to do that? Tried AddRelativeTorque, Vector3.cross and played with Quaternions but nothing was near to what i want.