Jersey Boys,
Something Rotten PG, but if the audience member doesn't have a decent knowledge of both musical theater and some Shakespeare.
Hamilton = Language, discussion of an affair, PG13
, Gentleman's Guide - PG13....the basic plot is about murder and infidelity. Nothing terribly "bad" but more conservative people might frown on it for younger kids.
Beautiful - PG, but I wouldn't have a kid sit through it, unless they were a Carole King fan
Fun Home PG13. There are very serious themes, including suicide, child abuse (verbal/neglect), spousal abuse (verbal), and same sex kissing.
However, any rating anyone gives you is arbitrary. It depends on each individual kid, and the circumstances of child's upbringing. (I'm assuming, of course, that you asking because of a child.)
I'm pretty liberal, and there have been very few shows I wouldn't allow my kids to see. I'm more concerned that they will like and understand a piece more than worrying about sensitive issues. As an educator, I also have to think about shows I take my students see.
If you give us more details about what concerns you have (a 8 year old? an old fashioned grandma?) we could better address your concerns.
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.