I also recommend Anker. I've also used RavPower and recommend them as well. Been using an older version of this charger for about a half a year now, and it's still going strong. Use it almost everyday when out hunting!

Edit: I just wanted to add that I'm using it with my Pixel which has a USB-C port. I just use the USB-A to USB-C cable that Google provided and it works perfectly. Charges my phone no problem while I have the game on.