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.
bamboos bimbos bams bimboes beams bombs booms bombes bums bemas bimas bemuse bimahs biomes biomass
bamboos moos tomboys sambos mamboes moose ambos bimboes bimbos booms emboss embows vamoose jumbos combos gombos gumbos limbos mambos dumbos umbos mos