I love reading middle grade fiction in the contemporary and elements of magic genres. Some that have left an impression are:
The Secret Horses of Briar Hill by Megan Shepherd, A Hundred Horses, by Sarah Lean, and A Whisper of Horses, by Zillah Bethell
Circle of Secrets, The Time of the Fireflies, The Healing Spell, and When the Butterflies Came, all by Kimberley Griffiths
Orphan Island, by Laurel Snyder
The Thing About Jellyfish by Ali Benjamin
Nest, by Esther Ehrlich
A Snicker of Magic by Natalie Lloyd
Breadcrumbs, by Anne Ursu
When You Reach Me, by Rebecca Stead
The Keepers: The Box and the Dragonfly, by Ted Sanders
The Road to Tater Hill, by Edith M. Hemmingway.
These books all feature young eleven or twelve-year-old-girls as main characters, and most are contemporary, with an element of magic or the supernatural.