How can I increase traffic on my website?

Hello, Reddit community!

I hope you all are safe and sound. I need help regarding increasing traffic on my website. My website is related to gaming and if I get more traffic which means I will get more sales but my daily new users are around 55-60 but at times I get only 20 users daily. The on-page of the website is completely optimized, I need off-page help with some traffic gaining techniques.
My DA is 8 I think which means backlinks are very few.