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.
ribiers ribbers robbers rubbers rebars rebores reburies robberies
biers ribiers birrs biros beers jibbers jobbers cobbers birse gabbers libbers lobbers bries ribbers nabbers robbers sabers sobbers subers daubers dibbers dubbers tubbers webers mobbers lubbers bears cubers fibbers fibers hobbers gibbers gibers jabbers bobbers jabirus jibers cabers goobers libers bibbers rubbers sabirs sobers dabbers daubries dobbers tabers tubers yabbers
ribier ribber ribbier rubier briber bribery orbier