static external ip from a provider other than my isp?

Yes, and it's a pretty common setup. You rent something that already has a static IP and tunnel to it from home: - a cheap VPS, run WireGuard on it and on your server, then forward the ports you need from the VPS down the tunnel - or a VPN provider that sells a dedicated IP with port forwarding, same idea without managing a server yourself Visitors see the VPS's IP, the traffic comes down the tunnel to your box at home, and your own IP can change as often as it likes. Before paying for anything, check whether your ISP has you behind CGNAT. If the WAN address on your router doesn't match what a what-is-my-ip check shows, it does, and normal port forwarding at home was never going to work anyway, so the tunnel is the way. If all you're hosting is a website, a tunnel service that needs no open ports at all might be simpler still.