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.
chare char chair share charr chore chary chirre chorea charry charro chiru shrew chiro shire shear cheer choir churr shore chirr cheero cheery cherry churro sharia cheerio shariah shri
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
chai chao chaw chay chia chiao