❔ Help me please

I need to help. I want to develop a game project to study, as well as the game "amoung us", where each user will be able to connect to a virtual room and be able to share the functionalities. or be the goal and unwrap a multiplayer game. I don't know which will be the best call in c++, c# or java. I don't know what to study what libraries are necessary to know to handle as multiplayer. Help please