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.
volante volant violent valiant flaunt flaunty flint flinty fluent
volante valiant slant sealant pliant planet planate leant alant allanite eluant flaunt lanate gelant volant gellant callant coolant gallant melanite plaint planed plant reliant slainte slanty