If you're going to make your own server, you need to start with something that is unique and heavily advertise that to other players. If you simply make a cheap knockoff of another server, there simply won't be any incentive for players to join, especially when other servers that are the same as yours have a larger player base. For advertising, it might be appreciable to just make a YouTube account and record a cool trailer of your server. That usually works incredibly well, especially due to the YouTube algorithm.