If you like fantasy and family stories, here are some other titles you might enjoy.
Among the Hidden by Margaret Peterson Haddix.
In a future where the Population Police enforce the law limiting a family to only two children, Luke has lived all his twelve years in isolation and fear on his family's farm, until another "third" convinces him that the government is wrong.
George Washington's Socks by Elvira Woodruff. In the midst of a backyard camp out, ten-year-old Matt and four other children find themselves transported back into the time of George Washington and the American Revolution, where they begin to live out American history firsthand and learn the sober realities of war.
Half Magic by Edward Eager. A magical coin grants the children half of whatever they wish for, with unexpected consequences.
Cracker! : The Best Dog in Vietnam by Cynthia Kadohata.
A young soldier in Vietnam bonds with his bomb-sniffing dog.
Storm Warriors by Elisa Carbone.
In 1895, after his mother's death, twelve-year-old Nathan moves with his father and grandfather to Pea Island off the coast of North Carolina, where he hopes to join the all-black crew at the nearby lifesaving station, despite his father's objections.
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.
Thank you for your Book Match Request. I have not read Gooseberry Park myself, but I can recommend some fantasy and dog titles you might enjoy.
Because of Winn-Dixie by Kate DiCamillo
Ten-year-old India Opal Buloni describes her first summer in the town of Naomi, Florida, and all the good things that happen to her because of her big ugly dog Winn-Dixie.
Chuck and Danielle by Peter Dickinson
Danielle's pet whippet, Chuck, is terrified of absolutely everything, but Danielle is sure that Chuck is going to save the universe one day.