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.
bullock bullocky block blocky bulk bloc baulk bulky black bloke baulky belleek bilk balk blog bowllike balky bleak belike beylic beylik beelike bowlike
bullock pollock hillock killock mullock lock block shlocky blocky shellack bullocky rollick clock relock hillocky pollack flock flocky rowlock killick shlock mullocky shylock
bull bellow billow billowy boulle bulla bullae bully