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.
pesky passkey
pesky sky bosky husky casky musky passkey risky desk dusky whiskey whisky
pes peas pease pees pehs peise peso pews pies poesy apes opes peps