Amazon is a good place to start
https://www.amazon.com/Gold-Plated-Compatible-Projector-Chromebook-Raspberry/dp/B075GZ8DX7
I have one of these HDMI to VGA adapters and it works with my S8. I have a separate USB C multiport hub that I plug it into.
https://www.amazon.com/gp/aw/d/B075GZ8DX7/