I have a limited experience about pilgrimages in Germany -I did a section of the Munich jakobsweg in March, some years ago. Probably there are more knowledgeable members of the forum. With this caveat, these are my two cents.
I think November could be tough because of the weather -you will need good, tried equipment; and careful planning.
Reservation will be almost mandatory -that depends on the route you choose, but the pilgrim's places I knew were mostly former pilgrims own homes; so, just three or four beds...I spent a night in a benedictine monastery, too. Gasthaus are needed options, sometimes.
Everything is more improvised, more spontaneous than in Spain. More expensive, too.
Guides (online and printed) I know are available only in German. For the former, try
here Any good bookshop will have a section about trekking books, including pilgrimages. Same for many trekking shops, as the big Globetrotter franchise. Trekking is very popular, almost imprinted in the Bavarian identity.
As you already probably know, almost everybody under 50 speaks fluent English in cities; but this is not always true in villages, especially in less "touristy" places. People are not so used to pilgrims -you will be seen mostly as another trekking enthusiast. But they will be always polite and will try to help you.
I had a great walk. Hope you enjoy yours, too.
Buen camino!