In addition to the Broken Sword by Poul Anderson, some S&S books that I really enjoyed was Sterling E. Lanier's Hiero's Journey (although the sequel, Unforsaken Hiero was a disappointment to me) and many of the tales written by Elizabeth Boyer back in the 1980s, such as The Sword and the Satchel and The Wizard and the Warlord, especially as they had a Norse Mythology bent.