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.
crosier crosser crozier carouser creasier curser crozer curiouser crosshair crasser coarser cruiser corsair grouser courser grosser creaser crazier gorsier cuirassier caresser grassier greasier cursor grocer coercer cursory grazier greaser grocery grazer kreuzer
rosier prosier crosier brasier drowsier drosera dorser pursier grosser proser gorsier rouser cuirassier rooser rosery grouser tarsier trouser greasier arouser brassier xerosere browser hydrosere drossier brassiere dressier prissier frowsier curiouser tressier grassier crozier crosser creasier carouser horsier worser
croci cross crosse crouse crows across