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.
arenas arenes arenose arenous airns airiness
arenas brens wyverns farinas erns ferns moreens piranas paranoeas puranas kerns querns greens sereins sirens corneas terns careens terrenes hernias trienes gyrenes tronas varnas uranias phrensy boreens reins serenes rouens harianas wrens arenes ruanas mureins preens pereons pyrenes korunas marinas barrens guaranas syrens coronas terreens carinas treens herns triens jarinas tureens rennase warrens