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.
duns dunes dons tuns dens dans dins dunness duennas dueness dawns dunce deans tunas donsy dynes donas dines dense dinos downs denes tunes danios donsie denies dienes donnas tauons donees tunnies donnees tins tons tens tans dinghies tones teens tines dance towns tonus tense toons tains tansy tynes
buns fauns funs huns guns muns nouns nuns puns runs suns duns tuns uns shuns