I very much would like to see an option to edit a stream list on one's own. Then we'd not need to wait for central updates to push this or that channel.
However, as long as you must pre-configure streams, please consider this one: http://fami.ga/w9rel
as well asl the whole range of BR streams (see the bottom section in above Wikipedia under the title of "Hörfunkprogramme"):
Bayern 1 | Bayern 2 | Bayern 3 | BR-Klassik | B5 aktuell | Puls | Bayern plus | BR Verkehr | B5 plus | BR Heimat
These basically provide the broad range of possible tastes and demands from contemporary artists through classical as well as informational stations, all in German, so a very good representation of choices in german language.
I checked and Google Translate does a decent job translating the pages, but I can help in case you consider this.
Thanks and greetings,