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.
beauteous beauties buteos beauts butes bates beats buttes butties buts bats bets beads beets butts baits bites bahts bouts boats bytes batts betas bauds bedews boites bettas betise beedies bootees beds bads buds bits bots bods botas botts bawds bides bitsy bitts bodes boots
beauteous luteous duteous buteos piteous utes