Banana Snake food

Question
I have read your prior answers and other reputable websites, but i have heard that common kingsnakes can eat frogs; if so, what variety and maybe other common foods are available to my snake. Thank you for your time

Answer
Other snakes obviously.  As for frogs unless you're sure which frogs aren't poisonous then don't feed them to your snake not to mention frogs from outdoors could carry parasites that transfer to your snake.  I'd stick with commercial rodents if I were you.