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.
kaons kanes kains kanas koans koines cons cans kens kins goons gowns coins kinos gains canso cains keens canes kines cones conus coons kenos guans conns kanzu kinas kinase queans canoes guanos cannas coneys conies quoins coyness goonies gainsay guanays gooneys goannas guanase gayness keenness guns gooeyness
kaons ons ansa nonas canes aeons fawns muons fans phones jones kains lauans leans canso anus cones vans foins phons guanos johns anes fanos loons cons goons manse lianas ains anis quoins fanes nans loans ones kanes anas koans mons hons manos owns ranis scions zones downs tans pones tauons tons dans toons wains wans sanes wons yawns yonis deans dons pansy means panes monas naans hanse pians sons ruanas peans noons lions manas peons naos hysons poons janes paeons joins hones pains onus neons queans phonos boons lawns fohns nanas nones moons gains hansa ions fons mans fauns banns beanos monos llanos conus conns manus bonus beans awns cains coins kanas coons mains bones bans vanes guans eons banes gowns jeans nouns pawns pans lianes cans moans pions sonsy cions onos peones knowns lanes pianos manes sains rains leones loins donsy dawns donas roans sones zoons tains tansy pons tones paeans tonus towns wanes weans sans chains yeans yuans
kaon kain kana kane koan koine agon agone agony ikon