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.
scudi scud scudo scad scut scout squid scuta squad scute sacked segued socked sicked sucked scottie sickout scat scot sect skid skit
scudi cud cadi cued scud scudo