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.
detent detente deadened detained detonate deodand tautened tetanoid
tent detent latent patent potent attent stent tenet detente stunt audient tend rident tenty quotient mutant retint nutant patient coattend cadent rodent natant stint tint attend dent whatnot