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.
sneers seiners sinners sooners senors sceneries zoners snares sonars snores seniors senores senoras sunrays senarius sonorous cinereous scenarios sunrise
veneers sneers pioneers ginners weaners whiners tinners tonners downers teeners deniers shanghaiers keeners sooners meaners coiners moaners canoers conners panners shunners winners caners honorees pinners honers vanners owners loners diners liners pawners lanners punners runners sinners joiners gunners cunners canners boners nears mooners goners fawners biners penners tanners anears panniers manners gainers paniers veiners ruiners leaners loaners wonners wieners weiners tuners toners tenners dinners banners dineros zoners inners fanners miners seiners shiners yawners