A really good fiction book for teenage girls is 'The Fault in Our Stars' by John Green. It tells the love story of two teenagers with cancer in a very poignant and real way. 'Divergent' by Veronica Roth is also popular. It's set in a dystopian world where the main character, Tris, has to find her place. Then there's 'Pride and Prejudice' which, although written long ago, still has great appeal for teenage girls with its story of love and society.
One great option is 'To All the Boys I've Loved Before' by Jenny Han. It's a cute and romantic story about a girl whose secret love letters get sent out accidentally. Another is 'The Hunger Games' by Suzanne Collins. It has a strong female lead, Katniss, who is a great role model for teenage girls. And 'Anne of Green Gables' is also a classic. Anne is a very relatable character with her vivid imagination and big heart.
Some excellent fiction teenage girl books include 'Ella Enchanted' by Gail Carson Levine. It's a retelling of the Cinderella story with a strong and independent female protagonist. 'Twilight' by Stephenie Meyer was also very popular among teenage girls. It's a vampire - love - story that captured the hearts of many. Also, 'Little Women' by Louisa May Alcott is a wonderful book that shows the lives and growth of four sisters, which can be very inspiring for teenage girls.