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.
honour honor honoree honer henry hennery
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