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.
phons phonos phones phoneys phonies hyphens fons fohns foins foehns fans fens fins funs vans
hons phons ons ions sonsy pons monos joins knowns kaons conus pions fons lions moons hones coins loins quoins hyphens hins conns foins sones tones shuns downs chins whins zoons towns tonus noons roans bones dons phones owns nonas peones goons ones hysons moans gowns hens onus phonos koans zones peons fohns tons pones donsy aeons loans johns huns paeons poons loons boons scions cions cons shins monas whens onos nouns nones neons muons mons foehns bonus leones wons eons coons cones jones sons donas tauons toons yonis
phon phone phoney phono phony aphonia