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.
leggins legginess leakiness lagans ligans likens logans logons lagoons lagunas leukons likeness luckiness lacunas lacunes lagunes
biggins leggins muggins noggins piggins gains regains waggons