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.
claimer clammer climber clamber clammier calmer clamor gleamer glimmer clumber clamour calamar gleamier calamary claymore glamor glamour glomera glummer calamari gloomier qualmier columbary columbaria
claimer blamer slimier palmer gleamier lamer limber limier limmer loamier lamber flamer filmer flamier calmer clamber clammer climber gleamer glimmer slammer slimmer
claim clam calami clammy climb clime