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.
buboes bubs baubees boubous bubbies bubus babes bubbas baboos babies bobbies bawbees boobies beebees bibs bobs babas babus bibbs boobs booboos
buboes oboes yobboes syboes hoboes goboes bes bos hebes boos jibes babies cubbies abbes boys hobos poboys loobies boss gobos lobes lowboys kibbes bobs maybes abos bees gobies cowboys rubbies lubes tubes taboos tabbies doobies dobbies babes rubies ribose bobbies rebbes obeys rabbies cubes jubes obes gibbous kobos gibes newbies phoebes kebbies lobbies baubees gabies rubes vibes gibbose beebees kibeis gybes hubbies sabes bubbies boobies abbess bawbees boubous kibbehs kibes yabbies boas hobbies beys bows cabbies abbeys lobos bios baboos niobous nabes booboos pubes tobies rabies ribes robes mabes daubes dobies doughboys tabes obese yobbos
bubo bub baboo baubee boubou bubba bubby bubu