One of the best family saga fictions is 'Roots' by Alex Haley. It tells the story of an African - American family's history from slavery to modern times. Another great one is 'The Thorn Birds' by Colleen McCullough, which follows the Cleary family over several generations in Australia. 'Gone with the Wind' by Margaret Mitchell also qualifies as it depicts the O'Hara family during the Civil War and Reconstruction era.
Well, 'Pride and Prejudice' by Jane Austen can be considered a family saga fiction in a way. It focuses on the Bennet family and their daughters' search for suitable husbands. Then there's 'Little Women' by Louisa May Alcott. This novel shows the lives of the March sisters and their family. And 'The Godfather' by Mario Puzo, which details the Corleone family's rise in the world of organized crime.