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.
ferulas ferules ferrules ferals ferlies ferrels furls fearless farls frails frills fireless variolas virelais virelays virls farles furless
ferulas morulas neurulas torulas rules ferrules ferules gruels parlays pyrolas trulls
ferula ferulae ferule feral ferlie ferly ferrule