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.
ionone inane inion
none quinone ionone chinone fanon pinon venine guenon onion munnion phonon leonine reunion pennon fanion union quinine canon canine inane anon inion guanine gonion nannie nine bunion known neon ninon minion anion cannon annona noun xenon conine noon gunnen nona pennine pinion renown ronion tenon wanion hyenine