The best replacement for vonnegut is bradbury.

The best alternatives to vonnegut are rated as following:
★★★★★  bradbury
★★★★★  palahniuk
★★★★  pynchon
★★  bukowski
★  ray bradbury
★  russell
★  thomas pynchon

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Speaking about vonnegut, one probably shouldn't forget about big boi.

Other search terms related to vonnegut and their ratings are:
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