Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Freiburg im Breisgau (52% of total searches to Black Forest). The next most popular destinations are Baden-Baden (26%) and Karlsruhe (18%). Searches for hotels in Titisee-Neustadt (4%) are also popular.
KAYAK users have found double rooms in Black Forest for as cheap as $15 (Gaggenau) in the last 3 days. The average price is $241.