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.
sonde snide sound sundew sonnet sundae sned send sand snood scend sandy saned sente zoned synod sained sennet seined senate sinned signed sonata sunned zonate zooned saunaed sienite sinuate sent snit snot
monde sonde monad node gonad coned hound indue nude bendee anode fond monte boned bond nonet rondo mound snide sound sundew zooned duende tondi toned undee wound pond honda conte mooned condo honed indie vendee phoned found vendue endue fondu fondue poind pound neoned round mondo nide bound sundae zoned denude dynode tondo unde undue yond