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.
strain seatrain stearin stern stearine citrin sterna strewn strown citrine styrene sauterne citron cittern sadiron
drain quatrain train detrain vitrain retrain seatrain strain terrain outran drawn redrawn terrane turion terrine durian stearine latrine citrin trine taurine veteran bodhran cateran deraign dourine citrine butyrin neutrino durion pterin stearin vitrine uterine
straw strawy stray storey astray store stroy stir striae stereo strew story starry stere stare star stair sitar satara stria strow sutra estray