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.
scut scute scout scuta scat scot scud sect sickout scoot squat scudo scudi scatt scatty socket sukkot scottie squatty scad skat skit skate skeet skite squad squid