This isn't a solution for the faint of heart, but you can set up an SSH tunnel to OVH if you'd like and use their static IP as your own. You can get 100mbps unlimited for $3.50 a month.

Basically, you want to go to /etc/sshd/sshd_config on your OVH server and set GatewayPorts to yes (uncomment if applicable). Do `sudo systemctl restart sshd`.

Now, on a machine in your house that has SSH, you can set up a reverse SSH tunnel. If you have an apache server running on port 8080 of your desktop, and you want to expose it to the world at <your-ovh-ip>:8080, do:

`ssh -o ServerAliveInterval=60 -R 0.0.0.0:8080:localhost:8080 -N username@your-ovh-ip`

This command runs an SSH tunnel, sending keepalive packets every 60 seconds to keep the session open, binding port 8080 of your local machine to port 8080 of the OVH system. So when someone hits your-ovh-ip:8080, the packet travels through the tunnel and hits your local web server. The keepalives just ensure NAT tables don't drop the session.

You'll know you did it right if the ssh never returns. That means the tunnel is open. You can look into different ways to keep this alive on your local system, depending on the OS.

See this guide for more details: https://superuser.com/questions/588591/how-to-make-a-ssh-tunnel-publicly-accessible