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.
gleamer gleamier glamor glimmer glamour glummer clammer glomera claimer clamber clammier gloomier calmer clamor calamar clamour climber clumber calamari calamary qualmier
gleamer lamber lamer loamier blamer flamer flamier calmer claimer clamber clammer gleamier palmer slammer
gleam gleamy glam gloam golem agleam