Flightradar24 has a great feature, I'm not sure if it's already been mentioned. When you click on an aircraft and the info comes up on the left, click on the blue box saying cockpit view and follow the aircraft in real time view.
Just been watching the 2 Wizzairs going into LJLA.
It is a good feature bit will depend on the speed of the pc being used and can be jerky and buffering at time on slow machines. sadly it stops o most landings well before finals. also being picky I would like better graphics.