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.
setose setous sets stoss seats suets setts stows stoas settees sots sits sods cetes suits satis sodas soots sites stays sades stews situs sides seeds sties sates zetas satays sautes seduce suedes suites suttas soddies suttees
ketose setose kotows vetoes tows ghettos ghettoes footsie photos toys betise buteos ratos patois ottos riotous mutase autos dose stoas stows dattos tattoos tootsie potsie lotos vadose touse mottoes douse lottos kowtows jatos kotos dowse toes taos mottos toss nodose pottos poetise retuse outsee rotos setous stoss datos dittos tods tots
set seat seta setae sett settee stoa stoae stoai stow suet suety