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.
verrucas verrucose verrucous fracas virgas viragos farragoes fricassee frags frugs freaks frocks
verrucas rucks arecas barcas ericas fracas gearcase carcase carcass crucks maracas myricas orcas trucks