Question about what i could do with a fictional world?

I’ve created a pretty complicated world in my free time, its comprised of 3 continents that have been discovered thus far by the most advanced races and countries with several others out there. So far my world includes 7 already known races and 2 dozen created races that range organizationally from tribal villages to mive empires spanning thousands of miles. I have given leaders to all of the most advanced nations and locations on a detailed map that shows cities, towns, forts, forests, rivers, deserts and just about everything else. I have alliances built out along with the leadership of each army and its overall organization. The political side of each nation is also carved out, some have kings, some emperors, some have an oligarchy style government and others have democracies. I have a history of my world dating back to its creation. My world is also influenced by magic, not as much as some other worlds but it is there and has a presence in both light and dark forms. My world is much more advanced then this but all the details would take far too long. What could I do with this world if anything could be done, as far as getting it out into the world, any ideas besides writing a book?