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.
elmier
limier loamier palmier plumier haulmier malmier gleamier gloomier plummier clammier slummier elmier filmier balmier qualmier slimier flamier bloomier palmer slumber polymer plumber calmer claimer plummer flummery limber climber bloomery bloomer glimmer limmer clammer limbier lambier lamer flamer slummer slammer lumber clamber gleamer glomera filmer lamber clumber glummer blamer slimmer telomere