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.
qats cats kats gats gates qaids cates gaits goats quits katas coats qadis quads quoits quotes coatis quotas quiets gateaus coatees catties goatees quietus cads gads cuts guts cots gaieties kits cutes kites kotos quods cotes goads quids gouts gutsy cadis caids cutis gadis codas coots kadis gauds keets cades kytes
bats hats seats peats oats gnats lats meats goats kats gats coats cats heats wheats wats cheats tats vats beats qats teats doats rats pats neats mats moats ghats boats eats fats feats fiats chats whats shoats