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.
diesis dieses dices disseise daises disses deices disseisee dizzies diseuse daisies dassies diocese doozies disease dioecies disseize diecious daces dazes doses dozes duces dioecious disseizee dosses disuse douses deuces dowses tussis decease tassies tissues tizzies
diesis noesis sis wiseass oasis gnosis disseise recess cassis dieses reassess whoosis cheeses physis quassias niseis missis mesas lysis lassis possess phasis cassias psis seis isseis pesos eses meiosis leses basis assess seise beses cess miosis assais tussis whosis chassis yeses
dies dis dits diets ides dais daisy dees dews deys dice dioecy dicey disci diss does dues ties adieus odes dites ditsy