Sherman Oaks area elementaries (for instance, Sherman Oaks, Riverside, Dixie Canyon, Colfax) are generally considered “good.” For an initial discussion of Chandler–plus local options for middle school and beyond–check PARENTS SEEKING SCHOOLS Comment #5 and subsequent replying posts.
Millikan Middle School has both a Performing Arts Magnet and Academy. Magnet students apply via the echoices application, and can have no prior experience in the Performing Arts. The academy students will apply via a separate application and will require an audition (singing and learning a short dance routine). Musicians will audition with a short musical piece. Math Academy is another option that provides for Accelerated Math pathways.
The Science Academy was previous an academy at Millikan, it is now its own magnet school. Please visit http://www.thesciencemagnet.org/