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.
velleity valet vealed velate vaulty violet felled fillet fealty veiled vallate vialled fuelled fellate veloute felt veld flit volt phyllite voled volta vault felid filet flite fluty fleet valid volti fueled fulled vailed valuta vialed faulty filled floaty
velleity laity jollity gleety quality nullity polity reality sleety slitty duality let lit