Hi! We visited Auschwitz about 3 years ago, though we did it independently.
I took one tour while we were there in Krakow and did not care for the tour
company, it may have been the guide. It was Orbis tours. we visited the
Salt Mine there and she very definetly downplayed the use of slave Jewish
Labor there during WW2. Even though a star of David was in the room, she
displayed other anti-semitic actions along the way. we again saw her in
Kamierze, the old Jewish section. There is a bookstore at the end of the
plaza opposite the Old Synogoge. They organize tours from a Jewish
perspective. we took the tour of Kazmierz from the bookstore. Check around
to see what is available now, as we were there going on 3 yrs. ago.