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.
salukis silkies sulkies selkies sulks slugs silks sleeks slicks slakes sulcus slacks sawlogs siliques siliquose siliquous slags slogs silicas
salukis lucks alkies flukes folkies clucks plucks selkies silkies sulkies talkies talukas taluks