Broadway musicals suggestions please

Itís going to be my birthday as well as my girlfriendís birthday next month. I was planning on surprising her with a trip to New York. Iím going to take her to a restaurant where we would have our musical trivia questions like usual then I would purposely lose so I could give her a ďwin free tour to New YorkĒ card. Sorry itís kind of lame. Then Iíll ask her if she wants to go to New York with me and watch a show in broadway. I need suggestions on what to watch, though. Iíve already seen The Phantom of the Opera and Wicked while she has seen Miss Saigon May of last year. I was thinking about Hamilton but that is if I could get tickets. My other option is The Carole King Musical, Waitress, and Anastasia. What do you think?