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.
quantic quintic cantic cuneatic kenotic kinetic gonadic gonidic
antic mantic cantic quantic quintic dunitic kinetic deontic venatic hypnotic kenotic phonetic mannitic genetic lentic cuneatic biontic antick lunatic ontic phenetic zoonotic fanatic downtick enatic tonetic
quant quanta qanat quaint quint quinta quinte aquanaut