Mini PC N300 Firewall Hardware Inte l82599ES 2 x 10GbE SFP+, 3 x i226V 2.5GbE LAN OPNsense Appliance,AES-NI, 2HD, NO RAM NO SSD

there are plenty of things like this https://a.co/d/04XZwqTj for hardware router, either DIY style or with whatever popular router distro toda also, if you have virtualize router on proper hardware, you can pass through to it either network interface or virtualize network interface and pass through one of instances to router