ASUS’s RT-AX86U AX5700 Dual Band WiFi 6 Gaming Router has been tested and added to SmallNetBuilder’s Wi-Fi Router Charts. It has an unusual three stream @ 2.4 GHz and four stream @ 5 GHz Broadcom-based design. But it currently ranks #1 in Wi-Fi 6 routers. There is no full review of this product at this time.
Synology's RT1900ac Router has a lot of nice features, but poor wireless performance.