Triple screen on MBP 2016 13"?
Yes, this model MBP supports two external displays without any problems, up to 4K each, or a single display at 5K. In both cases the MBP's built-in screen can also be used simultaneously.

You may want to consider whether buying another identical adapter is the best way to go, as you may want the flexibility of using another adapter or dock that provides other connection options as well. However, you can certainly achieve what you want and keep your MBP on charge as well.