You can do in two steps by jeviz.com. 1-) Choose sort by Most Reviews, which is an sort option Amazon generally hides 2-) From Average Customer Review choose 4

You can do in two steps by jeviz.com. 1-) Choose sort by Most Reviews, which is an sort option Amazon generally hides 2-) From Average Customer Review choose 4 stars and & up this will sort all products that are 4 or above stars but in most reviews order.