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.
sounded sanded sended scended snedded snooded snouted sonneted sonnetted syndet sainted scented snooted zonated sinuated
founded mounded wounded funded sounded hounded pounded bounded rounded fondued bunted sended denuded minded vaunted sanded handed taunted endued scended undead counted pended ponded indeed daunted dunted undid lunted chaunted winded ended poinded indued bonded landed hunted haunted fended bended banded mended jaunted mounted tended candied bandied punted rended rinded fonded vended pandied wended nided shunted