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.
dauties duties dawties dauts dates ditties duteous tutties deities tatties daddies dotes duits dudes duets dawts datos tates tides tauts doats diets dites didies tidies dattos todies tuttis dadoes diodes didoes tutees dowdies deutzia titties doodies toadies toddies teddies tits dits duds tets dads dots tuts tats deeds touts deads duads titis doits teats ditsy deets dadas totes didos dados ditas toits tutus deduce dittos dodoes tatsoi todays tattoos tedious tootsie
beauties duties cuties dauties ties utes kitties buteos booties cutties fatties bawties butties buttes butes suites dawties jutes gaieties mutes patties putties routes sautes tatties titties tutties gaudies lutes whities chutes jutties pities cooties cities laities ditties potties catties cutes cuteys quiets hotties jetties moieties nudies pieties cutesy cutis reties sties guides footies deities quotes tides tutees tuttis chitties shutes tis uts