Start with high-confidence norse myths books, then narrow by subgenre or adjacent topics.
Myths of the Norsemen
Roger Lancelyn Green
Norse Myths
Matt Ralphs
Sister Bear
Jane Yolen, Linda Graves
Kevin Crossley-Holland
True and Untrue and Other Norse Tales
Sigrid Undset
Asgardians: Thor
George O'Connor
Treasury of Norse Mythology
Donna Jo Napoli
Greeking Out Tales From the Underworld
Kenny Curtis, Jillian Hughes
Across the Rainbow Bridge: Stories of Norse Gods and Humans
Voyage With the Vikings
Paul McCusker, Marianne Hering
The Story of Rolf and the Viking Bow
Allen French
D'aulaires' Book of Norse Myths
Ingri d'Aulaire, Edgar Parin d'Aulaire
She Speaks: the Women of Norse Myths in Their Own Words
Honor Cargill-Martin
