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.
charities chariots charts charades shorties chards cherts chorioids choroids cheroots shrewdies chords shards shirts shorts shreds shairds sheroots
verities ferities charities parities rarities purities rites parietes forties norites varieties frites reties variates iritis ferrites cowrites rewrites diorites yperites hearties muriates sorites sureties parties seriates pyrites cerites curites verites writes barites neuritis dirties sorties shorties