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.
carbo carboy carb carabao caribou carob caribe garb crib curb crab corby corbie crabby grab grub kerb
carbo arb barb barbe jerboa carabao carb carboy carob garb marabou nearby darb turbo choirboy
car care carr carry acari scar scare scarey scarry scary