Just finished a great book and need recs

Hi everyone, i just finished "I who have never known man" and i absolutely loved it, i haven't been so obsessed with a book in a long time, i couldn't put it down, that being said i wanted to ask for recommendations on similar books, like those kinda books that make you connect with the main character by asking those big life questions , like whats my purpose, why am i here and all that stuff, appreciate it thanks 🙂