Uglies has genre Speculative fictionSpeculative fiction has examples: Zoe's TaleZoe's Tale was released 2008
[Human]: Can you recommend books similar to Uglies? [Assistant]: Sure! Do you like Uglies because it's Speculative fiction? [Human]: Yes I love speculative fiction!  [Assistant]: Great choice! Zoe's Tale and Z for Zachariah is Speculative fiction. You may enjoy those! [Human]: Can you tell me more about Zoe's Tale? 
Zoe's Tale was actually written by Stephanie Meyer and was released in 2008. It's a great example of speculative fiction just like Uglies.