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.
carouse crouse carious cruse carse course grouse coarse crosse cruise crus cars curious carrs corse cross cares curse croze crows creese curios kaross crease caries caress karoos karroos carries curs gars cris cors carassow craws cress crews cures gurus kurus cries grows crass grues croci guars craze gorse gaurs gross coirs cores currs cooers curies guiros kersey grease creasy cressy coerce kauris kouros corries cowries cuirass curries kauries quaeres
rouse carouse grouse crouse rearouse arouse ruse rose furious prose cruse porose gyrose erose roose various curious ceruse morose aurous ariose course bruise bourse arose carious torous vrouws reuse peruse brose parous porous ferreous browse roues crosse rerose cirrous drowse hydrous ferrous cruise cerous cirrose serious serous druse torose serosae triose