How a new unknown developer may promote/market their mobile game.

Hi, I've read a lot of different articles about marketing and promoting your app and while all of them had great information, I wanted other opinions. To elaborate further, this would be a breakdown of the situation. 1. No experience whatsoever with mobile game development 2. Lack of any social media following 3. Keeping costs as low as possible 4. Solo developer with no connections With all this in mind how what are some way to market/promote a mobile game? What would be the best way to get people to know said game exists? If you have any personal experiences that would be helpful too. Sorry if what I'm asking is unclear or too complicated and thank you for the help in advance.