Fifteen new musicals opened on Broadway this season, but you wouldn’t know that from the brutal 2024 Tony Award nominations announced on Tuesday. In the end, we’re left with an eclectic quintet of best musical contenders: “Hell’s Kitchen,” Alicia Keys’ exciting semi-autobiographical show; “Illinoise,” a tender dance piece set to the music of Sufjan Stevens; “The Outsiders,” a galvanizing take on S.E. Hinton’s classic novel; “Suffs,” about the early days of women’s suffrage; and “Water for Elephants,” a dreadful circus thing.