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.
dueness dunness denes dunes dienes denies duns dens duennas dines dense tunes deans dynes donees donnees tunnies tennies dans tuns dins dons tens deionize dinghies downs tense tones dinos teens dawns donas tunas tines tynes donsy dunce tineas tenace tauons tennis tenias teensy tenues tenuis danios donnas tonnes taenias tawneys tawnies tenuous toonies townees townies
dueness waeness woeness ness denes peones aeneus bennes benes gooeyness leones nowness fewness renews venues scenes dunness lioness feyness weenies nenes penes sheenies lowness vainness dienes genies tenues meanness hygienes coyness gayness keenness lenes finesse newness rawness genes wryness denies seines gneiss leanness wanness wienies sheeneys shyness ens
dene dune diene duenna dudeen den dun