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.
toady tody toad today toddy tod tad toed tidy tatouay tatty daddy dowdy teddy doody tat tot ted dad tote duty duad didy dado tide taut dato dead teat toit teed toot dita tate doat dada data doty dodo tied tout
toady hoody howdy tatouay doody soddy paddy road beady moody body boody faddy heady woad waddy shady toddy bawdy caddy load toad dowdy daddy rowdy noddy ready leady lady baddy goody goad gaudy wady tody woody today shoddy
toady toad tad tod roadie toed toea goad load road roadeo stoa stoai today toddy tody stoae woad