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.
noesis gnosis noses kneesies gnoses nouses nesses nooses noises nazis nisus gneissose nieces niseis nauseas naysays newsies gneisses nauseous
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
noes nos ones anes nows nous nosy nosey nose noose noisy noise newsy newsie news ness naos nones onos