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.
stelae stela stele stella stelai steelie steal steel steely sedile sedilia style still stole stall setal stile sotol stale stool stull styli cedula citola seidel settle stilly cedilla seedily sootily stoolie
telae stelae stella stelai delay dele tela tele telia beetle cadelle medullae needle patella patellae radulae steelie stela stele wheedle