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.
shrilly shrill sheerly charily cheerily chorally shorl charley cheerly chorial churl chiral choral charlie chorale choreal
frilly shrilly rill leerily roily rille riley frill rally aurally verily hoarily jurally gorily grille brolly airily orally prill serially zorilla zorillo drily hydrilla trill warily wirily cheerily shrill morally barilla guerrilla krill aerily eerily fierily frailly brill furrily virally gyrally gorilla grill merrily neurally aerially perilla rurally sorrily zorille drill drolly tearily trolly wearily charily chorally guerilla brillo