In order for your network to handle 4k/8k streams, large file downloads, and intense gaming sessions, you are going to need a decent router. The TP-Link Archer AX6000 802.11ax Router is worth a look. It is powered by a 1.8GHz 64-bit quad-core processor and 1 GB RAM. The router comes with parental controls, antivirus built-in, and support for Alexa and IFTTT.
The router offers WiFi speeds up to 6Gbps. It has with 8 antennas for extended range. You will also be able to connect 4x more devices than AC WiFi. The Archer AX6000 has active content filtering to keep your family safe.