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.
sorrel sorel sorely sorrily surreal surely surreally sourly saurel seral ceorl zoril sural surly cereal serail serial zoarial zorilla zorille zorillo serially
barrel parrel sorrel quarrel ferrel carrel reel cruel sorely saurel corral rarely sorel cereal boreal parral carrell morel purely loreal choreal real surreal oriel irreal ariel rely riel laurel barely jurel areal direly creel surely pyrrol gruel merely ureal yarely
sorry sorrow serry sirra sirrah sirree soar soiree sora sore sori sour surra surrey