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.
coarse corse carse course cors cars carouse curse cores cares carrs coirs gorse cruse crease cooers cruise caries creese crouse caress coerce crosse carries corries carious cowries cris crus gars kors curs carassow crows crews gores guars cross crass gaurs cries cures goers cress craws currs koras croze gorsy craze grouse kersey creasy kaross curies karoos cressy coryza grease kauris curios kouros cuirass curiosa curious curries karroos kauries quaeres quarries
arse parse carse hearse marse hoarse coarse ars bares wrasse maras pars crease burse fraise rose grease curse ares fears brose gnars rase faros fiars phrase corse jars paras morose varas carrs birse morse knars paris mars farce druse hoars guars mares vars ruse urease sears souaris deairs tahrs wairs ceruse terse wars torse worse charas roars charrs saris shares tiaras pursue taros fairs rerise knaurs hairs nears erase haars prese gars tarsi braise maars nares horse liars pears peruse lairs gyrose vairs arise gorse parrs cares verse gyrase lars naris cruse mairs frise rears dears praise boars bears kersey lears airs bourse laris course cars arose feuars pharos hares fares hears erose varus gears ears prose gnarrs oars urase jersey prise bars gaurs pairs horsey bursae prase tars rise rares pares nurse porose lares perse raise reraise tares saros wares soars dares hydrase ursae cerise tears torose purse wears chairs rerose chares cirrose chars shears years
car cor scoria scary scarey scare scar acari cowry cowrie corrie cory coria core coir carry carr care scarry score scoriae