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.
ducts ducats dicots dugouts tuckets dockets diquats dacoits tacts dacoities decades decodes tackets tickets toquets dakoits takeouts dakoities
ducts cats agoutis acutes backouts reacts rictus rectus scats picots piquets knockouts scuts lookouts scouts sickouts coquets dicots ictus ducats coacts dugouts bouquets takeouts baguets checkouts bugouts acts gutsy scutes facts gouts guts cuts rectos roquets recuts scots pigouts ragouts pacts sects cots loquats squats lockouts diquats cactus quits cookouts tacts cutes toquets cutis shakeouts
duct dicta dicty ducat ducked educate educt