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.
squills squillas squalls skills skulls sculls squeals sequels seagulls skilless skells scalls siglos sickles suckles sicklies suckless sequelize scales scowls skoals socles sokols
quills squills quolls culls guiles gulls kills quails quells cullis skills aiguilles coquilles maquilas rocailles sculls seagulls skulls squillas beguiles squalls tequilas
squill squilla squillae squall squally