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.
violins villeins violones villains valines villainies villainess villainous violence vileness felines valiancy valiance foulness flans felons flanes flense fulness valance valence valency
colins violins kaolins lins alines hellions kalians eloins lions linos lines villeins linns cullions bylines valines liens loins colons millines moulins mullions paulins plains salinas solans solons talions towlines cholines hyalins villains felines clines jawlines galleins billions beelines collins jillions aloins kaolines elains bullions bowlines blinis blains aliens malines guylines millions mulleins oleins pillions relines salines solions zillions tolans woolens hyalines yeelins