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.
babes babies baubees bawbees babas babus buboes baboos bubs babassu bobbies bibs bobs bubbies boobies bibbs boobs bubus bubbas beebees booboos boubous booboisie
babes sabes mabes tabes nabes abs bes lobbies maybes rabbies buboes bees newbies hobbies cabs hubbies abbes boobies jibes kibbehs pubes kibeis cubes phoebes bubbies rubes robes babas yabbies tubes tabus rebbes gobies doobies dobbies daubes syboes cubbies baubees oboes gabies gybes kabs abos nabis jabs beys hoboes babus bawbees abbess obes dobies kebbies labs kibes hebes gabs abbeys abys lubes babies tabbies cabbies goboes bobbies kibbes lobes jubes obese obeys loobies vibes gibes abas nabs fabs beebees habus ribes rabies rubbies rubies sabs dabs daubs tabs tobies wabs yobboes
babe baba baboo babu baby baubee bawbee baobab