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.
unlays unlace unless unloose unnails
inlays onlays unlays manilas henleys zonulas canellas analyse anlas enolase vanillas nalas nullahs cannulas ranulas inulase canulas quinelas quinellas quinielas manillas canolas