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.
cot coot coat cote cotta coati cod coteau coatee got cootie cut cottae cat couteau gout koto goat cate cute coda coed code cutey quota cutie cooed coude cutty catty gouty kotow quoit quote cattie codeia cooeed goatee kowtow