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.
roses rooses rouses ruses rises rases resees reuses resews raises rousseaus wrasses rosacea reseaus reissues reassess rices races risus razes recess resays resize razees resaws razzes resows hyraces reseize
hoses looses coses doses nooses loses rooses oses gooses gnoses poses meioses noses roses chaoses mioses chooses choses bouses noises sues coseys messes bowses houses vises busies cozes hussies issues gases cuisses gneisses eases louses cosies pauses liaises leses cissies dosshouse peises bossies lyses rises muses pisses lases leases misses kisses mouses pussies bises causes basses cusses rouses gasses susses vases reassess wusses sissies rases tusses whoosis ceases tasses wises tissues dieses chaises chases chausses chesses dowses bosses tawses chouses ruses yeses touses possess daisies mousses loesses gneissose hoseys voces posies fusses nesses mises sassies eses meiosis peases jesses biases moseys lessees sises missies seas puses kneesies resews josses fosses niseis mosses dosses pusses poussies guesses pases nauseas asses caseose feases musses biasses passes sees lasses gessoes sisses newsies lassoes sews gausses physes hisses gussies fesses poises souse buses hoises quasses seis cesses bases causeys beses hissies oases gnosis hawses sasses miosis fusees poesies reissues daises guises phases easies fuses lassies assess douses whosis busses oozes fasces boozes masses cases isseis baases losses reuses posses wisses dassies wrasses resees tussehs souses disses raises uses tassies wussies tosses esses chasses cheeses seises chiauses dozes nouses teases chowses yesses
rose roues dross prossie proso pros crosse froes eros brose arse arose ruse rows rousseau rouse rosy rase roose roes rise resew resee reseau bros brosy erose cross gross prose pross prosy drossy