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.
wommera womera woomera wombier
wommera jammer rummer rammier mimer mummery hammer hammier limmer hummer hemmer gemmier chimaera jammier chummier dimmer shimmer summery yammer simmer emmer camera gammer rimmer rammer mammer mummer gummer gammier gummier cummer camerae bummer woomera womera chimera dammer shammer summer shimmery rummier yummier