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.
lionesses lownesses lionises linseys leannesses lionizes lenses lances launces lunacies
nesses nownesses woenesses keennesses fewnesses lionesses meannesses dunnesses wrynesses coynesses waenesses leannesses gaynesses newnesses wannesses finesses rawnesses duenesses lownesses feynesses gooeynesses vainnesses shynesses gneisses vinasses geneses joneses kineses uneases
lioness lines lions leones lianes lionise lowness alines clines clones lins