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.
feudary feodary feater fedora feeder feature fader fetor fatter fodder footer fitter foetor fetter votary faddier faitour fattier footier
feudary sudary dairy deary diary feodary gaudery rudery cedary zedoary cheddary chuddar dry