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.
rebato rabato rubato rebate rebait rabat rebut rubati reboot rebody rowboat rebought rebid robot rabbet rabbit rubout rabbity
rabato rebato rubato bat rabat tubate niobate debate abate sabbat lobate rowboat rebate rebait beat baht rubati boat batt subito bate towboat bait showboat