I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
gussied guessed cussed guised gusset gassed goosed kissed cosied caused quizzed gust quayside gazed cased gusty gusto guest cosset cozied coesite gaseity gooiest
gussied biassed missaid kissed massed gassed cussed guessed jessed jassid sized cosied cissoid daisied reissued dossed passed tossed mussed chassed mossed gessoed hissed fessed moussed missed lassoed messed busied bussed issued fussed hessite bossed sussed sassed dissed cessed tissued pissed wissed gneissoid yessed