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.
foresail frazil versal frizzly phrasal fiercely frizzily frowzily furiously phrasally
resail foresail reassail resale reseal resile versal parasail presale trysail
fores foresaw foresee fares feres fires force fours frees fries froes