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.
refelt reflet refloat refelled refueled revolt refuelled refold reevaluate reflood reflate refiled reveled refilled revealed revelled raveled reviled rivulet ravelled revalued revolute
felt refelt flat flit leaflet novelty reflet svelte wavelet
refeel refel refell prefile ireful refall refile refill reflew reflow refly refuel revel rifely rueful ruefully reveal irefully reveille trefoil