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.
cant canto canty cannot cunt caned gaunt canid candy conte conto qanat count quant quaint quanta gannet county kainit canned canoed connate cuneate gahnite kainite coontie connote kent cnida condo coned kente quint
ant hant giant cant quant leant meant pant rant riant want chant
can cane canna cannie canny canoe