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.
tenour tenor tenure tenner teener teenier donor tuner denar toner denier tonier tinner denari tinier denary tonner tanner deanery denarii tannery tawnier tinnier
honour tenour nor snore junior senor penury minor manure manor coenuri coenure canoer inure nori honor noir knur knaur pawnor senior senora synura tenor enure donor tenure
ten taenia taeniae teen teeny tenia teniae steno