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.
labels libels labials libelees libelous lobelias libellees libellous lobules lowballs labialize lobulose
babels rubels bels rebels libels jebels labels bobbles dabbles doubles cobbles bibles foibles cabals gabbles obols sables diobols gobbles tables pibals bubbles nubbles gables fables babbles nibbles cibols nobbles nobles cowbells chablis hobbles wobbles bubals cobles abeles baubles doblas kibbles rubbles quibbles ables rabbles obelus sabals dibbles tablas wabbles pebbles pueblos bells roubles bals robles ghiblis rubles kiblas cables sibyls babuls chaebols
label labella labial labially labile liable libel libelee libellee lobelia flabbily flabella glabella glabellae