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.
skerry skirr skier saker siker seeker sicker scurry soaker sucker scarry sacker suckier scry scary sagger scarey screwy secure seggar sugary saggier soggier
equerry kerry skerry waggery doggery buggery piggery carry curry gurry quarry query bakery scarry fakery jaggery recarry mockery knackery puckery rockery rookery scurry jagghery roguery decry cookery toggery quackery wiggery
sake sike skee skew skiey soke syke askew