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.
emery ember emeer emmer emir embar embrue
emery summery shimmery mummery ambery aimer gammer gomer gamer namer maimer summary foamier memory jammer roamer gummier rammier mere boomier lamer camber hummer roomier hammer amber cumber rimier hemmer comer yammer camera mammer doomier chimere chimer dimer woomera womera simmer timer timber tamer shammer limier omer merry smeary jammier fumier rhymer miry loamier rummier nummary seamier emmer mummer gummer seemer ameer omber teemer gemmier dimmer chamber limber umber foamer gammier chummier ember hammier rummer rammer lamber number seamer homer beamier cummer homier bomber boomer emeer mammary comber reamer lumber mimer member rimmer ambry fumer limmer gamier rimer chimera humeri shmear roomer summer bummer vomer dammer dumber timbery wommera shimmer smear somber yummier