Lots of fiction about Jeanne d'Arc - see the 14th-15th century page (the 100 Years War section) at www.HistoricalNovels.info
. I haven't read most of it, so can't vouch for the quality. But Mark Twain's novel follows the historical record pretty closely.
I wrote an article about Jeanne for Black Night
, the fanzine of the Blackmore's Night
Renaissance rock band. Back copies are not readily available, but I will make a note to post the article in the "Articles" section of my website. Some of the best of the nonfiction sources I used were:
Kelly DeVries, Joan of Arc: A Military Leader
Joan of Arc: In Her Own Words
, compiled and translated by Willard Trask (1996)
Donald Spoto, Joan: The Mysterious Life of the Heretic Who Became a Saint
Régine Pernoud and Marie Véronique Clin, Joan of Arc: Her Story
Siobhan Nash-Marshall, Joan of Arc: A Spiritual Biography
Régine Pernoud, The Retrial of Joan of Arc
All are excellent.