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.
seallike sawlike soullike selkie slick slake salic saluki silique silk sulk siliquae silky slack sleek sulky celiac sawlog silica sleeky
eellike taillike soullike bowllike woollike seallike owllike veillike like hoelike wheylike rollick toelike raylike killick pealike sawlike quaylike lawlike jawlike alike bowlike tealike beelike toylike belike doughlike
sall seal sell sallow sallowy sally selle sal sel