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.
donnees donees donnas tonnes dons townees dunness dunes donsy dines downs tones donas denes dynes tonneaus donsie denies dienes dueness toonies tunnies duennas tennies townies dans duns dens dins tons deionize dinghies dunce teens dance dense dawns towns deans tonus dinos tines toons tunes tynes tennis tenues tineas danios tauons teensy tannoys tawneys tawnies
donnees knees pannes nones nannies nines leanness keenness meanness johnnies gunnies joannes tonnes dunness tunnies donees whinnies ranees shinneys pennies hinnies bennes bunnies pinnies pawnees nonnews nenes ninnies bennies bonnes minnies vainness fannies funnies townees tennies wanness jennies shannies sonnies shinnies
donne donnee done donee donna tonne tonneau don