You will ned to do some 'self diagnosis' when its come to noises before taking your car to a shop to get looked at.
Make notes of things like-
Does the noise happen when accelerating?
Does it happen when slowing down?
Does it happen just when sitting still idling?
Does it rattle when turning left/right?
Does it only happen when starting car or shutting it off?
These are things a shop will want to know! The more information you can provide about a noise the easier it is to track down!