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.
readded radded redded readied reded raided rodded reeded ridded radioed rated redid ratted retted redate retied reedit radiate readout rodeoed redout rioted rooted rotted routed rutted
gadded padded added readded wadded madded quadded radded readied budded godded kidded caddied mudded goaded raided ridded podded kneaded lidded eddied laded beaded sodded leaded aided shaded dadoed rodded headed jaded codded muddied faded toadied bedded haded giddied duded waded whidded buddied lauded redded loaded nodded waddied wedded woaded tedded shedded
readd read redd ready bread bready oread dread tread rad red