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.
foehns fohns fons fens foins faenas fewness feyness funs fans fins fines fanes fence fauns finis phons fawns fanos venus finos veins phonos veenas phones faunas venues faience fannies finesse funnies hyphens phoneys phonies
foehns ens sensa johns beans kenos reins queans lens leans lenis means benes wrens hins huns denes liens faenas gens hygienes bens aeons penes miens yeans hyaenas weans shins chins teens whens wheens weensy zeins scenas tens peens pens mense dense paeons neons eons fens fohns phons jeans genus hyphens hymens dens genes hons cense venus mensa lenos lenes lense queens rouens kens hens keens sense veins veenas penis deans paeans peans dienes menus peons peins tense scenes wens nenes whenas whins teensy sheens shuns weens hyenas yens