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.
guiros gross grows guars gurus gaurs curios quires grouse kouros cuirass curiosa gurries curious kirs curs gars goers gorsy cures grues greys currs gorse grass kurus gores cross coirs keirs kiers crows grays grees curse queers curies crouse greasy kauris karoos crosse grassy kaross course cruise grease carouse curries karroos kauries quaeres queries queuers curassow quarries
biros tiros guiros giros chiros eros burrows brose brosy vairs gyros torous vires harrows bros viers euros karroos trows mbiras chairs sires froes rows mires cross furrows nairus kouros hires arrows rosy cerous pareos faros lairs furioso heroes rose ferrous fires curios zeroes cires carious toros rerose zeros hydros prows zaires tires sirs serows prose triose brios chirus saros churros shires yarrows taros cirrose cheerios vrows pross serosa airs mirs piers tyros morose ariosi porous proas weirs whirs noirs birse curious dross iris crows liers various serious arose charros fiars trios burros firs pros parous troys keirs grows ires vireos karoos barrows barrios praos virus ariose arioso broos curiosa fairs heirs coirs roes gyrose erose hairs furious borrows quires gross farrows whirrs kiers mairs morrows kaross pyros aurous kirs hydrous ceros proso biers duros porose liras pharos brows narrows frows birrs heros morros tiers cirrous trois wires torose pairs nairas moires deairs marrows liars serous cheeros wairs chirrs sorrows choirs shiers shirrs prosy yirrs
guiro gaur guar gurry guru quire