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.
cycler cyclery scaler sclera scalier sclerae scowler sculler suckler scullery sicklier scalar scalare secular squaller squealer
cycler caller juggler cackler jigglier recaller nuclear regaler heckler giggler fickler cyclery wrigglier scalier coaler hacklier coiler scowler cooler chuckler scullery buckler squaller collier squealer coalier likelier tackler toggler gogglier wagglier knuckler wiggler niggler clear gallery higgler hackler beguiler scaler wriggler culler bugler haggler sclera recoiler nigglier ogler gigglier jugglery joggler killer gaoler galere suckler knucklier weaklier mickler uglier goggler tickler kegler wigglier queller squallier gluer sicklier boggler sculler shackler