unless you want to run a cluster. I don't know why anyone would want to rent a server. just by a second xbox. you can get a used one cheap or when you upgrade the the xbox one x use your old system for a server.
Well Play Anywhere (make your own server on your pc and can join it on xbox) was meant to be today, but they have lied and not responding to anyone about it on there twitter despite the fact jen announced it was going to be released today XD