Question about UNET

Hi, I have been searching for ages and I can't seem to find a way to use Unity's new networking system to create and join games without the need of the host's IP. I would like to know if there is a way to connect and host games like I could do using the Unity MasterServer but instead using the new networking functions and components. I have watched dozens of tutorials and they all use the IP method which is not what I want, and since the old networking is obsolete I would like to move onto the new one for my game. Thanks