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.
debuts debts debits debates doubts diabetes dubieties daybeds towboats
abuts buts rebuts debuts butts bouts bots bits bets rabbets bats cubits butes rubouts sabots debits buds kibbutz gibbets jabots obits gobbets qubits rabats rabbits abbots habits robots abets sabbats ebbets zibets debts hobbits beauts doubts