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.
betides bidets biotites buttheads bututs
tides betides stades ratites patooties ootids nudities quietudes iodides fatuities biotites bidets tutties titties tidies tatties ditties duties diodes didoes didies deities dawties dauties etudes viduities quiddities mattoids oddities outdoes petites satieties hydatids