I am using an OPNsense Qotom MiniPC as a firewall/router. I have three Zyxel Wireless APs that I flashed with OpenWRT. I also have two Zyxel switches (8 and 24 port) that I also flashed with OpenWRT. And lastly, I have two Netgear R7000s, also with OpenWRT, that are glorified smart switches. I am very happy with my setup. It works like a champ!