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.
ranis rains roans ranees ruanas runs rins rawness rance wrens reins ruins rinse runes renews rouens rennase ruinous wryness
anis ranis queans ansa nisi manos penis anes kains hanse gains fauns kanas johnnies genies anise ains hinnies vans pennis canso mains nannies finis ninnies bennis guanos anas meinies fanos janes gunnies kaons pianos anus canes bunnies lanes lawns pans tenias sonnies wains tunnies danios tansy tennis wans dawns weenies wienies toonies shanghais sheenies yawns yonis tains pains denies sanies pawns lianes manse loonies pinnies llanos monies minnies lenis zanies jennies manes roans rains phonies sains naans fanes conies bans means fannies manias kanes genius hansa beans manas jinnis cains funnies boonies lunies cans koans guans beanies paeans ponies vanes lanais banes beanos jeans peonies ennuis goonies ionise banns bennies awns fawns nans heinies panes fans munis leans taenias nanas manus loans meanies pansy lauans mans sans lionise zinnias minis peans ruanas pennies pians sanes lianas moans deans tans xenias wanes unais dans tawnies tenuis tennies weans whinnies chains townies shannies shinnies yeans yuans
rani ran tranny train granny grana grainy grain cranny crania crane branny brainy bran brain ruana roan ranee rainy rain gran grannie drain trainee urania