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.
zitis zits cities sits cites satis sites situs sties suits zetas suites zooids sets sots zeds
mitis titis zitis tis its hits etuis kits beauties footies bidis gaits bawties knits jetties bits raitas gites ties coitus quiets reties hotties boites potties fiats catties rotis pitas metis kitties cooties pits shits chits duits wites whities situs waits tutties mitts titties patties tuis tatties litas ditties sties ditas dits mites deities dauties cutties quoits aits kites cuties bites laities poetise suites patois butties cities diets riots dawties booties bitts bitsy suits coatis quits fits satis nites jutties writes baits lits pieties writs sites nits ditsy betise putties fatties midis zits sits gaieties moieties gits pities cites rites dites doits duties cutis teiids tits toits tuttis whites whits wits chitties yetis