As Chopin wrote over 200 works for piano, I guess you could just suggest all of them.
I guess you could suggest every work by Chopin at the approximate skill level you guess the original poster to be.Unfortunately, we have no real criteria for making meaningful recommendations—even as concerns skill level, given that there is a very big spectrum of technical difficulty between the first and third movements of "Moonlight."
If you can play the 3rd mvt of the Moonlight, perhaps you're up to the challenge of Chopin's beautiful and impressive Polonaise in F-sharp Minor, Op. 44.Good Luck!Bruce