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.
whidded wadded wedded whited waddied waded wited wooded waited witted weeded woaded whetted wideout whiteout weeted wetted wotted
kidded whidded ridded lidded tidied godded sided hided nided mudded loided caddied padded chided guided codded readded gadded duded tided wadded wedded voided giddied eddied tedded muddied nodded sodded rodded radded budded redded bided podded buddied waddied madded added quadded aided bedded raided shedded