Great Question @Rob_coughlin Robert. Since your just starting out on the banjo I don’t want to overwhelm you but I pick the 5, 4, 3, 2, and 1 strings with my Thumb. My 4, 3, 2, and 1 strings with my Index finger and my 3, 2, and 1 strings with my Middle finger. I hasten to add NOT in that order.
My advice for what it is worth is to follow @BanjoBen 's beginner learning path at your own pace. As you work through Ben 's lessons he will introduce you to all kinds of picking patterns at the time he feels it is right.