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.
hillocky hillock hulky holk hulk heliac
blocky flocky shlocky bullocky mullocky hillocky lock killock colicky block talcky bullock rollicky flock pollock hillock clock lucky plucky relock kolacky rowlock mullock shlock flecky shylock
hillo hilloa hill hallo halloa halloo hallow hello hilly hollo holloa holloo hollow hullo hulloa hulloo