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.
dight tight davit divot taught deviate daft deft
bight knight dight hight fight wright light wight weight right sight eight might tight night fought weighty naughty waught taught sought wrought righty caught nought eighty ghat mighty nighty aught paughty ought naught righto