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.
rebait rebato rebate rabat rebid rebut rubato reboot rabbit rubati rabato rabbity rowboat rebought rabid robot rabbet rebody rubout
bait rebait bat bit batt bate baht cubiti lobate niobite bite beat rabbit rabat boat rubati sabbat subito debit tubate rebato bitt cubit abate habit obit hobbit rabato howbeit rabbity qubit niobate rebate rowboat babbitt rubato sobeit debate towboat showboat