I have a xbox one and two players can play it at the sametime but I would like to join the party with my kid and wife. There are two solutions, minecraft healms and get your own server. The minecraft healms has a good price but I wanted to runs scripts on minecraft for a long time so I decided to go with the local server.
I did some research and found a bedrock server running on docker. That is really simple to use, even for non tech people.
The project I am using is .. ( link to github ). And the steps are quite simple.