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.
coseys coses cosies cozeys causeys cases gooses causes cusses casease caseous cuisses caseose casus cozes casas gases cozies cozzes cussos gasses cassis guises kisses cassias gaseous gausses guesses gussies quasses
hoseys moseys causeys coseys basses gases pases looses phases lassoes raises soys lyses mosses bises gnoses guesses beses nesses bouses sews nooses says fosses musses wises isseis chooses niseis ruses bowses gausses feases hawses lasses houses cosies sises dieses touses susses peises nouses josses fuses nauseas missays coses tawses esses yeses resews losses reassess pusses posses poesies oses sissies tissues pauses wusses chouses gussies causes missies roses sassies daisies tasses tusses chases chesses mousses eses poses chausses hoses meioses resays biases ceases rises bossies doses hissies chaises biasses cissies eases gessoes leses douses quasses liaises poussies cuisses seas mioses hussies bosses fesses bases loesses bioassays fusees essays cozeys gasses leases dassies tosses souses peases noses baases guises kneesies cases gneisses chiauses uses busies vases buses busses fusses issues fasces poises loses asses vises gooses rouses tassies newsies sues seises easies lases reuses muses pussies noises chowses hisses naysays chasses cusses messes reissues jesses wrasses louses physes disses wussies assays kisses cesses sees hoises assess dosses paseos lassies possess lessees mouses resees wisses masses rases puses posies pisses oases sisses teases passes choses cheeses misses mises seis rooses sasses daises dowses tussehs chaoses yesses
cosey cos case cooees cooeys coos cosie coss cosy cows coys cozey cogs cokes