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.
manor minor manner manure meaner moaner manuary menorah miner mooner hymnary moonier meuniere
manor nor tenour donor senora senior noir nori honor honour junior caner canoer leaner loaner meaner minor moaner pawnor saner senor snore tenor weaner
mano man main mana mane mania manna many maun mawn mean meanie meany meno moan mono