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.
xylene xylan saline silane sileni sullen
xylene lune glen melena colleen galena cline mullen moline oleine jawline cauline feline poleyn plena ralline villein leno relleno leone silane byline sullen line tolane lone towline lien woollen galleon choline kaoline lane alien valine glean maline clone colone clean mullein milline olein violone julienne fallen pleon plane pollen beeline alane reline baleen saline bowline sileni aline lean alienee toluene alone woolen gallein chalone guyline hyaline