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.
clowned cloned cologned cleaned colonnade gallooned kilned gleaned gland client calando callant coolant glenoid
clowned loaned ballooned eloined cloned cologned gallooned mullioned reloaned taloned
clown clon clone colon colone coloni colony