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.
grids grides grits grads grades griots guards gratis gourds gradus greeds gourdes queridas corridas crits creds curds cords cards grots cruds creeds crudes kraits greats groats credos cairds crowds grouts grates greets garrets garotes curites cardias grottos caritas grottoes corrodes crowdies corodies corrades cowrites garrotes garottes corrodies garrottes
rids murids hybrids grids sciurids hydrids jerrids irids jerids viroids fortis bards lards hurds lairds merdes irides reds cruds girds marrieds crits merits birds nurds brides sords hairdos lords perdus raids prides fords nereides sarods territs yards shreds shards choroids chords worrits weirds wards urds triads druids grides hards bardes derides brads fards purdas nards aroids oroides guards burds hayrides nerds curds rods hoards pards creds boards gourds braids sards frits rads writs borides grits nereids hydrides farads grads joyrides myriads rides brits queridas corridas hordes liards ordos prods cords cards cairds oreides herds bourrides periods droids gourdes fiords beards hydroids surds toroids turds ureides weirdos words chards chorioids shairds sherds yairds yirds
grid gride garda gardai grad grade griot grit gritty grody