Converting my Character Controller Movement to Rigidbody

Thinking it might be better for my game, I’v started converting my player controls using the Character Controller component to a Rigidbody component. Almost everything for the player movement is converted except for one line of code. As seen below (at the very bottom) it is the line with controller.Move, because I don’t know the Rigidbody equivalent to controller.Move. If anyone knows what I can put to get this script to work, please let me know.

public class PlayerController : MonoBehaviour
    public CharacterController controller
    public Transform cam
    public float turnSmoothTime = 0.07f;
    float turnSmoothVelocity;

        void Update()
            //Character Movement
            float horizontal = Input.GetAxisRaw("Horizontal");
            float vertical = Input.GetAxisRaw("Vertical");
            inputVector = new Vector3(horizontal * 50f, rb.velocity.y, vertical * 50f).normalized;
            rb.velocity = inputVector;
            //Character Rotation
            if (inputVector.magnitude >= 0.1f)
                float targetAngle = Mathf.Atan2(inputVector.x, inputVector.z) * Mathf.Rad2Deg + cam.eulerAngles.y;
                float angle = Mathf.SmoothDampAngle(transform.eulerAngles.y, targetAngle, ref turnSmoothVelocity, turnSmoothTime);
                transform.rotation = Quaternion.Euler(0f, angle, 0f);
                Vector3 moveDir = Quaternion.Euler(0f, targetAngle, 0f) * Vector3.forward;
                controller.Move(moveDir.normalized * movementSpeed * Time.deltaTime);

found a solution:

Vector3 moveDir = Quaternion.Euler(0, targetAngle, 0) times Vector3.forward;

// controller.Move(moveDir.normalized times speed times Time.deltaTime);

rb.velocity = moveDir.normalized times speed times 20 times Time.deltaTime;