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.
fescue vesicae fisc fiasco vesica fossick physique
miscue fescue rescue basque bisque bosque casque masque mosque muscae risque roscoe usque
fes fease fees fehs fess fesse feus foes