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.
cruise cruse crouse crus cris carouse corse curse cries carse crissa caries crease curies curios course creese crosse grouse coarse carious cuirass curiosa cowries curries corries carries curious cars kris curs cors cress crows gurus croze gorse crews cores cares crass kurus coirs craws currs craze cures croci cross grues carrs kyries caress cooers grease coerce kauris guiros kersey cressy creasy quires gurries kauries kerrias kerries queries carassow curassow quarries
bruise cruise arise raise ariose ruse rouse rise houris frisee reuse curse kauris peruse prise purse reraise cerise druse auris arouse bourse cruse burse fraise frise pharisee carouse crouse braise course birse grouse nurse praise puris rearouse rerise ceruse triose
cru coria curia curiae curie curio ecru