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.
portico paretic parotic piratic pyretic pyritic periotic parodic partook pyridic periodic pratique partake
portico iritic uratic dioritic diaeretic soritic pyritic hieratic parotic noritic neurotic neuritic neritic quartic critic cretic aortic barytic heretic vertigo ferritic erratic erotic paretic piratic pyretic cerotic xerotic dieretic diuretic uretic