It depends on how big your house is, but I would say that if you're living in anything bigger than an apartment or small house, then $100 isn't going to get you anything with WiFi 6.

That being said, here's some stuff:

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The ASUS RT AX56U is a lot of router for the money. It's fast, has 4 Ethernet ports, and two USB ports, and is even compatible with doing a mesh system with other ASUS AI Mesh routers in the future, if you want to eventually go that route.