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.
chamber chambray chimer chimera chimere shammer chimaera chummier chimar shimmer shimmery shmear
amber chamber camber lamber aimer ambry bomber ambery ember namer mammer lumber limbier lamer gamier cumber shammer dammer omber reamer sambar seamer somber dumber tamer timbery wombier ambeer ameer beamier tambur comber sambur seamier rammer roamer gambier limber number member maimer foamer loamier camera umber hammer jammer lambier gambir foamier gammer gamer timber yammer