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.
rust roust rusty russet rest russety roast wrest roost resit roset resat wrist reset reest reused reseat wriest resite roused wristy raucity risotto rosette roseate rased recit resid resod rosed
bust joust just gust lust must oust roust rust dust