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.
share shire chare shrew shear shore sharia shri shariah char chair shirr chore shier charr shoer chary sheer charro charry chirre chorea sherry
hare chare share are tarre dearie zaire rare pareo parae here quaere care chary hoar hire hear quare fare shire shrew where dare tare hair barre area mare pare pareu saree laree ware whore bare char haar chair charr chore shear shore yare
sha shah shaugh shaw shay shea pshaw