Some links to intermediate content (Youtube)
Just a heads up: I've just been listening to this German version of 1408 by Stephen King and since it is both entertaining and relatively easy to understand, I thought I would share :)
I've also been listening to a lot of Hörspiel (radio plays) on Youtube and find that they are generally easier for me to understand than most audiobooks: they are more dialogue-based and the sounds etc. help to better grasp the context. Here's a few of those:
Happy listening !