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.
ricksha rickshaw rikisha rikshaw rakish roguish
ricksha kasha buckish hawkshaw hickish cockish cockshy kickshaw quackish peckish puckish rickshaw rikisha rikshaw sickish
rick rickey wrick brick bricky crick crickey prick pricky trick trickie tricky