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.
moot mot moat mott mote mood motey motte mooed motto moody moiety met mut mat mod mite mute mode meta mete matt modi meat mate maut meet mity mitt mutt matey matte meaty
boot foot hoot coot loot moot oot root soot toot shoot