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.
agorae agora agree agria acre agar agger aggro augur augury aquaria
agorae agora scoria cicoree pakora okra ogre ocreae begorra begorah kore core korai kora gore curiae coria score scoriae