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.
scowler scaler sclera sculler suckler sclerae scalier scullery sicklier cycler scalar cyclery scalare secular squaller squealer squallier squalor
scowler coaler coiler cooler gaoler ogler recoiler