Same place on each rotation? Where / what position is the cable end of the front deraiilleur cable in, is this catching the crank?

Have you looked at the bike when you are not on it, and rotate the cranks, can you ID where the sound is from this?

Are the crank arms done up, same with the pedals.

Finding creaks is very hard, if not impossible without having the bike physically with you, have you tried taking it to a bike shop?