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.
eggars eggers eagres egress ecrus
gars sugars seggars agars cougars cigars saggars beggars eggars muggars vicars muggers gaurs jagras luggers cares foggers aggers eggers rigors jiggers sowcars augurs jaguars cars picaros hegaris shikaris scaurs chukars aggros buggers saguaros niggers hoggers squares carse scares guars loggers keggers eagres ogres huggers naggers daggers decares soucars vigors carrs saggers makars picaras coarse joggers uakaris diggers gaggers taggers jaggers chiggers laggers muggurs riggers baggers scars ruggers daycares dekares doggers tuggers waggers chuggers chukkars acarus shikars