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.
carse coarse cars carouse carrs curse cruse corse cares caress cruise crouse caries crease creese course crosse carries gars curs cris crus cors carious carassow crews cress crows gaurs currs cores guars craws cures croze cries cross coirs gorse craze crass coerce cooers kersey kaross grease creasy karoos grouse kauris cressy curies curios quaeres curries kauries cuirass karroos curious cowries corries curassow quarries kirs kors kris
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 care carr carry acari scar scare scarey scarry scary