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.
squid squad scud skid scudi scudo skied squat sicked skiddy skidoo segued sucked skiddoo squatty scad scut skit
quid equid liquid squid guid guide qaid quad quit quod piqued squad