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.
amerce amberies aimers ambers ameers ambeers amirs amours ambaris ambries amoroso amorous ambaries
commerce amerce mercy meres embrace vambrace immerse reembrace reimmerse chimeres
aimer ambeer amber ambery ambry ameer amir