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.
todays tods toads tatouays todies toadies toddies dads teds tads tots tats dates dawts ditas datos dadas tauts toots deads duads dados dodos toits tates touts teats tides totes dauts teiids dittos tootsy tidies dattos dadoes dodoes diodes dawties duteous tattoos doodoos daddies tedious dauties doodies tatties tootsie dowdies teddies
heydays days paydays maydays middays todays daws dads dahs stays codas dais judas odas odahs satays whydahs nadas deys heydeys ideas whidahs badass houdahs medias dadas tatouays sodas howdahs redias keddahs chuddahs
today tod toad toady toddy tody toed hodad hodaddy iodate stoat toadied