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.
arse arose arise ars ariose arouse airs ares aures auris arris auras arras areas arias ariosi arioso arrays arrows aureus aurous
arse carse torse purse parse morse marse gorse curse course corse coarse horse birse hoarse hearse verse burse bourse nurse perse terse worse