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.
lenis lens lenes leans lenos lense liens lunies leones lanais lins lionise loonies leanness lawns lunes loans loins lines linos lions linns lunas lanes loons lauans lianas lianes llanos lioness lionize looneys lowness
penis lenis ens bennies paeons faenas kens hymens meinies gens nenes goonies hyphens lens keens leans nisi ponies ionise danios genies liens pens minnies hinnies anise jennies peens foehns ninnies hygienes johnnies benes veenas miens venus sanies queens beanies sheenies wienies whens tawnies wheens weenies weensy tennies dens denes townies tenuis zeins hyenas yens shinnies tens dienes fens pennies penes wrens hens peons unais xenias reins mense scenes sense meanies munis teensy gneiss loonies beans genes weens tense lenes tunnies taenias peins jinnis conies tenias denies scenas bens sonnies pinnies hyaenas bennis whenas fannies rouens boonies paeans jeans monies veins phonies nannies menus kenos neons aeons anis gunnies zinnias lunies lense shannies pennis mensa genus heinies bunnies lionise lanais genius finis queans means ennuis funnies manias peans deans yeans teens sheens minis wens weans toonies tennis dense lenos whinnies zanies sensa cense ranis peonies eons yonis
lean leno leone lien blenny glen olein oleine plena