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.
horrors harriers hurriers hirers hearers
horrors errors mirrors terrors roars auroras burrers furores furors jurors crores cruors marrers priors toreros warriors