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.
someones sameness simonies semens somans cymenes siemens simoons summons simonize symbions seaminess saimins simians zoomanias
someones lemons tameness monies ambones hambones gameness lameness moneys sameness cymenes simonies daemones daemons daimones demoness demons umbones