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.
pubis pubs pubes poboys
pubis bis nubs lubes newbies bias bobbies cubs babies hubs bise bios cabbies jubas cubbies bibs obis lobbies boobies bubbies rabbies rabies rubes rubs soubise subs daubs dobies dubs tabbis tobies tubes chubs kibbis cubes fubsy obias gobies fubs cobias ibis jubes hobbies phobias bubs hubbies pubes bubus gabies nabis loobies kibeis nubias kebbies pubs rabbis rubbies rubies rubus subas daubes dobbies doobies tabbies tibias tubas tubs yabbies