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.
dattos datos dittos tattoos doats dados dawts dates dauts dadoes ditties dawties tatties duteous dauties dits tots tits tuts dads tets tods tats dots tatouays titis ditas teats toits touts duads ditsy doits diets totes didos dites duets duits dodos deets tates dadas tutus toots deads tauts dotes toads tootsy tuttis didoes todays diodes dodoes tutees duties tatsoi todies doodoos dowdies tedious daddies toddies deities doodies tootsie tutties titties toadies
ghettos ottos pottos dittos mottos dattos lottos taos mottoes tattoos tots bitts netts jatos mattes motts lyttas kotos fouettes tits setose tuttis ratos rotos kowtows setts stoss suttas buteos fyttes toes bettas vetoes mitts batts shotts ghettoes chotts kotows riotous toys botts tats tods tows photos cottas mottes mutts ketose lattes autos tets tuts watts pittas putts buttes rottes setous stoas stows datos patois lotos matts butts lottes toss yetts
datto data tatted doated dawted dated patted matted hatted fatted date dato daut dautie dawt dawtie ditto ditty doat dotty tattie tattoo tatty batted vatted catted mattoid ratted dauted dittoed dotted tattooed