Vonnegut

I'm deciding on which book vonnegut wrote that I should read first. I found an old pack of his books in a box in my apartment, and I have: Mother Night, Breakfast of Champions, Wampeters Foma & Granfalloons, God Bless You Mr. Rosewater, and Player Piano. I heard that Player Piano is good, but I'm not very familiar with Vonnegut. Which should I read first?

Breakfast of Champions

No Slaughterhouse Five? A crime.

Mother Night

Sirens of Titan or Slapstick.

I know you don't have any of those books, but if you can't find them then go for Cat's Cradle. You should be able to find that one.