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.
cans canso cains canes cannas canoes cons koans kaons conus gains kains cones kanas coins conns coons guans kanes queans conies guanos coneys gainsay guanase guanays goannas gayness coyness kins guns kens kanzu keens kenos kinas kines kinos goons gowns quins
bans koans yeans wans deans sans pians pans nans fans vans jeans cans guans beans lauans queans leans loans mans means moans naans paeans peans roans dans tans weans yuans
can cane canna cannie canny canoe