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.
kois kos kis koss koas kiss kissy kousso kas gos qis cos keas goos kues coss keys cosy goys kaes coys coos goes kays cows goas kaas cosey cosie cozie goose goosy guise kazoo kusso quais