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.
lassoed lased leased liaised laced lazed lysed lazied loosed loused last least listee lysate lawsuit
gessoed lassoed dossed sussed cissoid reissued passed mossed missed fussed massed biassed bossed bussed fessed tossed chassed mussed hissed issued messed dissed sassed cessed pissed gneissoid misshod jessed moussed kissed gussied guessed gassed cussed tissued wissed yessed sod
lasso lass lassi lassie class classy glass glassie glassy las