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.
ogres ogress okras ockers
eagres ogres cowries equerries auguries ogress aggers fiacres cougars cores vigors gurries kerries jaggers eggers baggers queries crews mockeries jagras jaggaries beggaries cress puggrees quaeres joggers muggurs caries foggers hoggers aggros muggars nacres carries rookeries caress pugrees chuggers decuries screes dekares digress secures doggers decrees tigress tuggers waggers sugars chickarees chicories skerries keggers regress saggars cicorees niggers scares greys scries laggers corries rockeries loggers pugarees squires luggers daycares riggers jaggheries buggeries rigors muggers cures augurs gars gores jiggers lucres ligures fakeries puggries figures quackeries grees curries beggars kyries quarries aggress grues gaggers piggeries eggars egress cares agrees quires kauries naggers curies buggers agars cookeries cries ruggers bakeries saggers cigars acres scores jaggeries scurries requires hickories rogueries vagaries puggarees sucres huggers decares knackeries squares recarries chiggers chickories daggers wiggeries waggeries toggeries decries taggers seggars doggeries diggers screws degrees shikarees