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.
fens faenas foehns fans funs fins fons feyness fewness fohns fanos fauns finos venus veins fanes finis fence fines fawns foins venues venose veenas faunas venous faience finesse funnies hyphens fannies vans fancy phons vanes vinas vines vinos
bens kens sheens wheens weens teens wrens fens hyphens hens gens keens ens lens queens liens hymens miens peens pens rouens dens tens wens whens yens