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.
course corse curse crouse coarse curs cors carouse currs gorse coirs cores cures cruse carse curios cruise grouse curies cooers creese crease kouros coerce crosse corries curries carious curiosa curious cowries cuirass crus cars kors cris curassow croze gorsy koras gaurs crass cross craws gurus guars gores craze carrs kurus cries cress cares crews goers crows crissa queers caress kauris cressy creasy kersey caries grease curacy coryza quires carries gurries kauries quaeres queries queuers quarries
bourse purse curse course burse nurse hours auras phrase arose buras knurs cruise burrs bursae hearse rise verse arise arouse frise cures pursue bruise prise brose gaurs gyrose crouse porose currs coarse rose buhrs purrs cerise churrs urus ursa tours torose hydrase duros duras douras suers source cirrose rerose ours purs rearouse grouse carouse puris kurus aures prase rouse murrs perse morose furs bursa kersey horsey horse parse gyrase houris ruse lauras prese marse feuars pours giaours rase morse furze mures euros curs reuse gorse burs arse lures gurus guars kouros lours carse fours pursy erase knaurs erose birse kauris queuers auris peruse jersey corse prose hoarse muras rerise cruse ruers ceruse sieurs sours suras druse dures durrs terse torse urase ursae worse yours
cur cor scour scoria cougar curry coir core coria corrie cory cowrie cowry cure curia curiae curie curio curr currie kouroi score scoriae scurry