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.
omenta omened
lomenta omenta ramenta tomenta cementa momenta menta comment dement maenad cement mantua raiment meant pimento ament memento moment ambient manta foment menad payment amanita pimiento lament loment lambent momento