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.
focalise focalize vocalise vocalese vocalize vocals faucals fogless feckless fugles vakils
equalise vocalise legalise localise focalise vocalize secalose localize legalize legalese equalize vocalese focalize goalies coulisse caulis teocallis
focal focally fecal vocal vocally