If you like Mary-Kate and Ashley books...
Thank you for your BookMatch request. I'm glad to hear you like Mary-Kate and Ashley books. Here are some other titles you may like:
Anastasia Krupnik by Lois Lowry
Anastasia's 10th year has some good things like falling in love and really getting to know her grandmother and some bad things like finding out about an impending baby brother.
The Steps by Rachel Cohn
Over Christmas vacation, Annabel goes from her home in Manhattan to visit her father, his new wife, and her half- and step-siblings in Sydney, Australia.
The Agony of Alice by Phyllis Reynolds Naylor Eleven-year-old, motherless Alice decides she needs a gorgeous role model who does everything right; and when placed in homely Mrs. Plotkins's class she is greatly disappointed until she discovers it's what people are inside that counts.