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.
lirot laird liard laired lariat lyrate laureate lard lord
lirot rot riot rout roto roti rote rota groat root wrote garrote parroty rewrote dirty tarot trot weirdo cheroot shirt cowrote airt hairdo virtu girt carrot carroty garote griot grot heriot quirt grout parrot pierrot dirt droit torot trout chariot sheroot shirty
lair liar lier lira lire liri flir