Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Freiburg im Breisgau (59% of total searches to Black Forest). The next most popular destinations are Baden-Baden (21%) and Neuweiler (10%). Searches for hotels in Karlsruhe (10%) are also popular.
KAYAK users have found double rooms in Black Forest for as cheap as $113 (Weil am Rhein) in the last 3 days. The average price is $219.