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.
abatis abattis abates abets abuts abbots abides aubades aboideaus aboiteaus abodes abbotcy
abatis bahts ubieties dubieties zaibatsu rubatos rebatos rebaits rabatos labiates baits bates bats batts bawties beats beauties beauts betise boats booties butties abates abattis niobates rabats rebates rowboats sabbats debates towboats showboats