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.
brads braids breads broads byroads burds brats birds bards brides beards boards bardes breeds broods bredes borates birdies hybrids burdies berates barytas borides birettas berettas bruts brits borts bourrides birrettas berrettas brutes burets britts boarts berets bruits barrets barytes brights barites brattice burettes burritos barrettes hybridize
rads brads farads grads korats lairds hordes jerrids frats grades herds cards irades reds rods cruds shreds nards chords cairds marauds turds gourdes murids drats bards gradus rereads brats weirds yards shards charades wards treads hydrids derats sarods prods parados nurds liards bardes aortas tortas sords perdus girds guards byroads roads boards birds beards oreads fiords fards hairdos sherds karats hurds dorados corrades hoards triads lords burds chards myriads hybrids raids pards breads hards reads sciurids rids frauds broads tirades kurtas lards purdas braids weirdos rats ordos gourds curds creds cords carats grids jurats merdes jerids irids fords yairds readds nerds parades prats sards surds dreads trades urds words shairds yirds
brad brat burdie broad bride brede bred bready bread bratty braid bard borate birdie bird berate barde burd abrade