I know this idea is not mine but I'm changing it. There are musicals I've not seen in this type of story that I'm adding.
For reference, these are the casts I'm using
Newsies-original tour cast
Les Miserables-2012 movie
Bonnie and Clyde-OBC
Next to Normal-OBC
Phantom-25th anniversary
Willy wonka-the original movie with gene wilder(and the kids are gonna be in 9-10th grade)
Wicked-the cast they have now except Kara's still Galinda and Aaron as Fiyero
Grease-Live cast
Hamilton-OBC
Tuck Everlasting-OBC
Spring Awakening-OBC
I may add on as I go so