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.
conns cons coins cones conus coons conies coneys cannas coyness goannas cans cains kaons canso gowns goons koans canes canoes koines quoins gooneys goonies gunnies keenness guns kens kins gooeyness
conns ons annas neons foins monos inns moons phons cannas loons coons loans hones kaons bunns phones fons joins wynns joannes quoins cones linns jinnis nouns ones moans pannes wons zones toons tons sunnas tones tauons siennas downs dons donas pones peones knowns owns pinnas sons fohns scions nones poons cions eons aeons hons goons coins koans johns noons jones gowns boons cons conus mons banns mannas bennis jinns nuns ions monas lions goannas leones loins bonus phonos onos bonnes hennas nans pennis muons roans pons bones hysons nonas sones peons onus bennes pions paeons zoons donnas donsy sennas duennas tennis sonsy tonnes tonus sunns towns yonis
conn con canna cannie canny coin cone coney coni cony coon icon scone