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.
phyllary phylar fullery filar flair flare velar volar flurry fuller foliar faller floury fleury filler feller volery
phyllary leary salary cellar pillory alary biliary bleary fullery hellery clary collar gallery glairy glary miliary milliary pillar raillery ciliary dollar lar
phyllo ghyll phalli phyla phylae phyle aphylly