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.
plumier plummier palmier plumber plummer plumbery plumeria palmer polymer palmar palmary palmyra
plumier lambier slummer slimier plummer plumber malmier glummer gloomier gleamier clumber clammier haulmier flamier elmier limbier bloomier balmier lumber loamier limier qualmier palmier filmier plummier slumber slummier