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.
repolls repels repeals replays replies replows repulse reapplies rappels replace ripples
repolls polls pols zeppoles spoils spells palls pills poles polis polos polys pools cupolas maypoles spalls pulls spills apollos spools appalls dipoles
repoll repel replay replow reply