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.
anneals annals annuals aneles annuls analyse annulus anils anlas annualize anoles analyze awnless annulose anlace
anneals hymeneals pineals denials tenails fennels manuals snails runnels biennials renails biennales channels hymnals annals panels vinals finials finals finalis finales tunnels annuals kennels nails knells gunnels cineols ronnels kneels aneles quinelas nalas cannels canals noels menials funnels snells dynels toenails unnails chunnels