go to playscripts.com
they have LOTS of middle school plays and you can read half of the play online, so you can get a good sense of the play
alot of great options for middle schoolers especially
Fear no more the heat o' the sun,
Nor the furious winter's rages;
Thou thy worldly task hast done,
Home art gone and ta'en thy wages:
Golden lads and girls all must,
As chimney-sweepers, come to dust.
~Cymbeline