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.
reverse revers reivers rievers reveres reverso reavers reveries ravers rovers refers rivers reefers rivieras rephrase referees reoffers reifiers reovirus refires refries roofers refreeze roughers refroze
averse diverse reverse verse wivers oversew waivers savers newwavers lovers verso veers givers beavers cavers laveers quavers liviers shivers pavers oversea fevers reavers reveres leavers avers bouviers rievers rovers severs divers weavers viers leviers levers sivers wavers vivers lavers reverso livers aivers quivers heavers hoovers hovers jivers shavers havers weevers fivers rivers louvers movers overs oversee overuse ravers reivers revers covers shovers
reverie revere revery raver reaver refer referee reiver riever river rover