@ricka , Rick, Google has partnered with tech repair chain uBreakiFix and are not making the charge port flex cable/daughter board available yet and want $85.00 to change. You may be able to search Ebay, Amazon, etc. for a used daughter board or you will have to repair what you have. The port it self is a new type C type Micro USB, may be hard to find the correct replacement to solder onto your existing board.
This is really not a repair for the inexperienced because the charge port for your device is soldered to the daughter board and the heat generated could cause further damage if not very careful. If port undamaged and just loose it may be able to be resoldered to board. I will post a 2 link's to a tear down guide to get you inside the tablet to check the charge port and will also post a link showing what is involved in repairing a mini USB attached to the board(example not your exact device). The last link is to new charge port(compare part to old, to make sure match), which you can also do a search for better pricing perhaps if needed. If not wanting to do the repair yourself have a good computer/cell phone repair shop have a look and estimate repair. Good luck.
I hope this helped you out, if so let me know by pressing the helpful button.
https://www.youtube.com/watch?v=0tKNn_w3Yfk
https://www.etradesupply.com/blog/how-to-replace-google-pixel-screen-battery-and-charging-port-flex-cable/
http://www.ebay.com/itm/2X-Google-Pixel-XL-C-type-Micro-USB-Charger-Charging-Sync-Port-Plug-Connector-/142257035277?hash=item211f2e180d%3Ag%3AKDkAAOSw241YdbhZ
https://www.youtube.com/watch?v=Ov-HACi975w