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.
megara meagre muggar macro makar maker micra mikra meeker mocker mucker mugger muggur mockery muckier muggier
megara gar sugary seggar sacra picara beggary cougar jaguar jagra jaggary hegari vagary eggar gaur beggar aquaria agora agar guar gray muggar cigar saggar sugar chakra