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.
kits kites kats kids kitties keets katas quits kotos kadis gaits kytes ketose kotows quoits coitus kiddos quiets kiddoes quietus kiddies kowtows cots gaieties gats cuts cats guts qats gouts cates qadis gates cutes kudus guids goats coats caids gadis kudos qaids cadis cotes gutsy coots cutis quids
aits quits chits whits toits duits dits suits writs pits nits knits lits quoits kits baits gaits gits its hits fits bits sits zits doits tits waits wits shits