bayern 2 Hörspiel Pool, right now it seems they are doing a lot of novels in different parts. but you can go back and also hear older productions, which are mostly one hour long and from sound artist or journalists or writers and so on.
I also like „lange nacht“ (these are 2 hour or longer features, that usually air Friday night on deutschlandfunk)
And I just started listening to this (while cleaning my apartment, but probably also good for long drive to Gent or elsewhere)