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.
troys trays trios trois tiros tyros toros treys taros trows torose triose torous tres tars drys tors tahrs tares torso torse torsi truss tiers duros tries terse tores torus tarsi toras tress tours tyres tires trews dross trooz trues drays trass trees tears torrs trousseau drowse terras drossy hydros torahs tressy terais drowsy tories derays tarres hydrous tarries terries yttrias terrazzo dors
troys serows prays burros farrows torous karoos curios hurrays drys brios greys aurous heros harrows euros barrios grows bewrays bros eros proas cross marrows barrows brays biros brosy charros rerose furrows churros cheeros ceros treys toros hydros drays surreys serosa cerous prows prose trois gyros morose taros zeros cirrous pross porous borrows morrows froes narrows vireos parous forays karroos kouros rays frays rows rose arrays morays crows pros erose brose arose guiros arrows faros hoorays sorrows roes gross broos duros giros grays kaross trays ferrous burrows preys brows heroes cheerios gyrose porose vrows pareos frows murreys rosy praos prosy saros derays tiros morros trows pharos proso pyros cirrose serous zeroes dross hydrous torose trios tyros chiros yarrows
troy try taro tiro toro tory tray trey trio trow tyro strow stroy