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.
weeded wedded weeted waded wadded wetted woaded wooded whetted whidded wited waited whited witted wotted waddied wideout
heeded ceded weeded reded deeded reeded needed sueded seeded bedded tided duded aided teddy added hooded loaded codded rodded guided beaded lidded faded headed readded laded padded gadded voided feuded sodded wadded whidded wooded quadded shaded ridded redid dead mudded haded kneaded tedded madded hided lauded leaded coded bided nodded godded budded radded wedded podded loided redded raided nided sided kidded goaded jaded waded woaded chided boded shedded
weed weedy wed weet awed owed swede sweet sweetie tweed tweedy tweet weeweed