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.
lessee less loess lease lassie les loss lues lees leis leys leas lyse lase lass lies lose lossy lyssa lycee lassi louse lieus lowse lasso loose wyles lezzie liaise looeys looies louies las lez lis
passee lessee see tusseh tassie dassie wrasse reissue posse fesse fossae fosse fusee issei issue jesse cuisse poussie gussie resee lassie sees masse tasse mousse tissue passe chasse