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.
hermai herma hermae herm harm harem hareem
hermai gourami tryma drama diorama aroma barmie fermi herma hermae rami karma grama korma neuroma prima primi surimi derma dormie tarama chroma
her hear heir here hero herry hoer