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.
biennia benni benne benny bonnie ben bin bine bunn bene bean been bani buna beano bonne bonny bunny beanie
pennia biennia tenia benni ennui henna hymenia penna pennae senna penni sienna xenia zinnia duenna taenia taeniae teniae