I don't know if this will apply for your case, but I have a big website for an specific fandom (similar to videogame, it is a little nerdie), which lead to a bi

I don't know if this will apply for your case, but I have a big website for an specific fandom (similar to videogame, it is a little nerdie), which lead to a bigger Twitter account (almost 200.000 followers). Try to monetize it with content which will get attention from your visitor. Run teespring campaigns, contact shops who sells merchandising, and that kind of stuff. You can also create a blog and ask shops and manufacturer for products to write reviews. You will receive them, and after the review, you can sell them.