How to set an ONLINE multyplayer server

Hey guys,i want to make an online game but all i can find is how to make a LAN game or a game with dedicated server.
I want to make a game that the server is not a player that is hosting. If someone can help me i can pay him.

A game that the server is not a player that is hosting IS a dedicated server. But depending to numbers of players you may need to create something “stronger” than the dedicated version built in.