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.
paulins plains paulownias paleness pillions plans plainness planes pleons pylons pliancy poleyns pollens pollinize polonaise
moulins paulins lins linos oleins jillions villains linns liens hellions villeins eloins valines lines guylines loins jawlines malines cullions millions mulleins pillions relines salines zillions towlines ulnas hyalines yeelins kaolines lions colins bullions talions ulans salinas solions bylines plains violins galleins billions felines bowlines blinis hyalins cholines blains alines kalians kaolins elains collins millines clines aloins aliens mullions beelines yulans