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.
autos audios aits ados ates adios adieus ads adds aids
autos uts butts mottoes tods kotows nuts ottos tauts buts jutes tuts vetoes buteos butes quods mutes lutes guts riotous cutes lottos kudos putts bouts dattos shutes chutes photos pouts utes udos tots duits patois ketose stows ruts ghettoes setose dittos mutts stoas fatuous routes suits jatos cuts duets muts outs phuts judos beauts mottos louts gutsy taos utas gouts mauts toys kowtows ratos datos huts juts nutsy rotos tows cutis toss duos setous quits sautes kotos routs toes stoss knouts touts lotos puts ghettos pottos suets dauts tattoos ghauts shouts tutus shuts