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.
reaver raver reiver revere revery riever reverie rover refer river reefer riviera reefier reifier referee reoffer refry rifer refire roofer rougher
aver weaver raver quaver haver saver leaver caver beaver reaver laver suaver paver heaver shaver newwaver waver livier over rover siver lover navar lever livery liver hoover laveer sever heavier mover knavery loafer revere quiver leavier never favor hover soever veer weever levier reiver jiver wavery shivery jivier naiver cover waiver liever wafer aiver riever giver quavery savvier vera fever fiver vier quivery wiver revery ever wavier louver river safer savor bouvier severe very diver whoever faery chafer every shiver deafer shover
reave reavow rev breve drave bravo preview bravi gravy grave crave brava brave revue review reive reeve rave greave prevue trave