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.
tattooer tatter tattier tater tetter totter titter tooter tauter tuatera tottery titer tutor tatar toter dater touter teeter dotter dottier doter tetri titre deter dodder datura tedder dieter tidier deader datary detour tawdry dotier
tattooer footer vetoer hooter cooter looter mooter rooter tooter toter shooter tor
tattooed tattoo datto tatouay tattie tatty mattoid tatted tat