Piedmont high and private high schools

Hi, my kid is going into 8th grade. She's at a small private school now, which has been ok. She has ADHD and feels "dumb" compared to some of her schoolmates which for the most part are super-smart, ambitious kids. We have been able to afford private but our resources are strained and we'd like for her to go to a "good" public school. We are in Oakland School District so it would be Oakland Tech which I think is too big/unwieldy for a kid with ADHD. For the record, my child is regularly misplacing and losing all of their belongings, including homework and clothing. They get decent grades, As and Bs, except for Latin, where they got a C. 

Several of their schoolmates are going to Piedmont High next year, and others to a variety of private schools. I am thinking of trying to transfer to Piedmont from the OUSD. Regardless of whether that's doable, what's your experience/opinion of Piedmont high?

What about local private schools like Maybeck and Catholic schools like Bishop O'Dowd and St. Mary's? Any other high schools you like?

Thank you in advance for sharing!