You mean hardware one or sofftware one? If its software firewall for windows, there is very little to choose, you have windows default one, comodo firewall, zonealarm and thats it when it comes to standalone ones. All others are found as a comobo offer along with anti virus software. If you want a hardware based firewall you can have opnsense/pfsense as a bench mark and there is a ton of options if you are willing to invest and learn.