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.
newsy news newsie noes nows nosy ness nosey gnaws knees knows noisy gneiss naysay nos nus gnus naos nays nice nisi nose nous wyns
newsy meows shews cheesy tews views hews jews gawsy queasy easy mews messy news pews poesy resay sews dews whews chews yews