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.
piquet piqued pigout picket picot piked puked packet paiked picked pigged pocket pugged peacoat picotee
bouquet coquet piquet roquet toquet quiet quit baguet loquat piqued squat diquat chaqueta