Amazon with HooToo has the HooToo 7-in-1 USB-C to 4K HDMI Adapter Hub with 100W PD Charging (Space Grey, HT-UC010) for $25 - $3 off coupon (check green "Save coupon" box) - $6 off with code 6KZ8GD8H at checkout = $16 with free shipping on $25+ or with Prime.

Features 4K HDMI port, 3 USB 3.0 ports, 100W PD charging ports and SD and TF Card Reader.