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.
cris cries crissa curios cruise curies caries cars kris cors curs crus corries carious cowries curries curiosa carries curious carse cross crass cruse crews crows cures cares croci cores carrs corse curse coirs craws currs cress kauris course crouse creese cressy crosse cooers kyries crease coarse caress creasy kauries gurries queries kerrias carouse kerries cuirass carassow kors quarries kirs curassow gars keirs gross gores gorse goers kurus grues grees grass guars croze grays crazy craze grows gurus kiers gaurs gorsy koras greys
arris kauris sherris zoris souaris puris peris orris noris naris morris loris laris kris cris auris iris houris gharris hybris bris paris pooris saris sris derris shris