Not OP, Tailscale is easiest, quickest, and free up to 100 devices as of today. It also has a feature to provide a public URL if needed, or can be run with Cloudflare Tunnel at the same time.

The only annoying thing for me with tailscale is having to have its VPN always on.

If I need to connect to another VPN or need to access some geo restricted page, then I need to disconnect tailscale.

Otherwise it's great, but I'm not sure I could convince my wife to use it.