If you can't port forward, then it's likely you won't be able to (easily) host a Minecraft server from home. However, if ...

Learn how to set up and host a Minecraft server on your PC with this easy step-by-step guide. Perfect for multiplayer fun ...

Typically, Minecraft servers start at port 25565 and go up from there in increments of one. You can port forward just 25565 if you want a single server, or even port forward 27000 or 16000 or ...