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.
nabis nabs nabes nubias nebs newbies nibs nobs nubs knobs niobous
nabis abs bis habus labs fabs bias bios bise gabs bibs hubbies nabes abys abos cubbies loobies kibbis kabs nabs nubias obis rabbies rabies rubies sabs dabs dobbies doobies tabbis tabs tibias wabs cabs abas jabs boobies tabbies tabes daubs dobies sabes soubise rabbis rubbies obias pubis babas newbies babus gabies tobies tabus cobias bubbies phobias babies cabbies ibis gobies bobbies kebbies kibeis lobbies mabes hobbies babes yabbies