Thanks for getting back to me!
Brave New World is actually quite popular on MeetNewBooks, and its recommendations include Fahrenheit 451, 1984, Animal Farm, and others [1].
For Honoré de Balzac, I do have several of his works, including Père Goriot. The top recommendations for that include authors like Gustave Flaubert, Stendhal, and Émile Zola [2].
I'll check if I have a more complete catalog of Balzac's works—some of this data can be tricky to source. If you have specific old or lesser-known books you're looking for, let me know!
[1] https://www.meetnewbooks.com/suggest-book/57277/Brave-New-Wo...
[2] https://www.meetnewbooks.com/suggest-book/83435/Pere-Goriot-...