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.
finale final finial finally vinal faunal vineal veinal finely veinule faunally venal vinyl funnel phonal vainly venial venule fennel funnily venally venially
biennale finale annal anile anele anal nala finial anneal veinal venal venule vineal genial lineal cuneal hymenial manual nounal penial pineal pinnule renail senile xenial zonule denial tineal tonal hymenal nail anole lienal biannual biennial binal faunal final annual banal phonal veinule venial vinal henley canal lunule hymeneal hymnal menial penal penile pinnal pinole renal snail zonal zoonal tenail toenail unnail
fin fain fine finny fino foin vina