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.
liard lard laird lardy laired lord lirot lured lurid lariat leered loured laureate
liard fared fard heired hard weirdo sired garda farad fiord gird pardy dared hoard lardy nard faired hared hairdo aired shard mired rared yard sheared choired wired wared roared fired sarod chard laired oared waired feared tardo card tared quired tired pard irid geared myriad pardi haired heard board neared eared ired deaired pared bard bared bird guard soared weirdy hardy hired beard arid caird shared lard triad laird teared cared tardy barde ward paired chared reared seared virid sard weird chaired shaird yaird yird
liar lar glare claro flare alary alar liri lire lira lier leary lear laurae laura lari laree lair laari blare flir clary glary