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.
iodate ideate iodide idiot iodid
date pedate iodate caudate redate nidate sedate hated tate lyddite boated meated mutate mated rotate situate radiate doated notate mediate moated fated sated rated viewdata seated dite cheddite statue cheated nutate guttate dated dato ideate data coated lated vittate metate state pated teated doat podite dawt gated bated daut dote outate heated chedite