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.
coelom coelome coulomb clomb cleome culm glom clam calm climb golem gloom gloam claim kelim calami clammy glioma gloomy
coelom celom elm cleome shalom helm whelm glom velum gloam coulomb coelome clomb elmy phyllome bloom loom loam gloom realm phloem kelim telome whilom sholom
col coal coequal coyly coala coaly coil cola cole collie colly coly cool coolie coolly cooly coulee cowl koel coequally