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.
ells els eels else
alls balls knells quolls lolls quells palls nills polls culls gulls gills cells rills sills bells dells jills bills dolls hulls talls bulls tills ells walls bolls wills maills shells molls yells mells falls fells zills mulls quills lalls kills nulls knolls pills calls galls ills rolls pulls sells hells jells fills vills malls shills mills chills lulls wells tolls halls fulls tells ghylls dulls hills dills yills