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.
haemic hemic humic hammock hommock hummock hummocky
emic chemic haemic demic hemic mic mick vomica comic domic gimmick ohmic mica gamic limbic gnomic neumic oomiac humic mimic umiac iambic chymic
haem ham hem hame hammy haymow heme ahem rheme