What I did is I bought a cheap small PC with an Intel chip (i5), some RAM and an SSD. You can find these with more than one NIC pretty easily from Amazon, and they are just normal computers: only small and quiet. Then go with a virtualization platform such as Proxmox, and to that, install opnSense as the router distribution and use the rest of the processing power to run everything else in your house in virtual machines: Home Assistant, media server, you name it… Just search Amazon with something like “router pc” and you get a long list of machines below and over 200 euros that are more than enough for your home. Computers like this one.

The great thing about opnSense is how it gets regular updates. And when you use a normal PC as your router, you run the latest FreeBSD kernel and get updates basically as long as opnSense is developed.

You probably also want a Wi-Fi. These boxes usually miss it, and even when they have a Wi-Fi card, opnSense is not really great for setting wireless networks. I just bought a few APs from Ubiquiti. They are a bit on the expensive side, but I just don’t need to touch these things after setting them up and the network never fails on me. There are also much cheaper APs in the market, just get anything that fits to your budget and plug it to the router.