EdWeek compared recent ALA and PEN "banned book" lists, for the 2022-2023 school year -
https://www.edweek.org/teaching-learning/these-were-the-most-banned-books-in-2022/2023/04

Parents seeking higher level books which are age-appropriate for their advanced readers, may choose to steer clear of books on these lists as these selections may tend to be sexually explicit.