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.
shoelace shoeless sheilas shells shiels shoals chelas shools cholas sheols sheals chalice chollas chalazae shuls chiels cholos shales shauls shawls shills
shoelace relace lace lacey bullace veloce glace palace place plaice solace
sheal sheila shell shelly sheol shiel shoal shoaly shool scholia