Hey guys! I'm a newbie at SEO and need your advice. I sell game servers, and I'm done with the internal optimization of my website. So, what's the next step for its external optimization?
Thank you for your answers in advance.

How to Optimize your Website for SEO in 8 Simple Steps

Analyze all of your website data.
Conduct thorough keyword research.
Produce long and value-rich content.
Optimize for on-page SEO.
Optimize for off-page SEO.
Optimize the website for mobile.
Speed up the pages.
Get quality backlinks.

HI there.
I think you should look for some baсklinks market as this is the easiest way to rank higher on Google. This is actually what I do for my websites as they usually provide a placement guarantee and I don't have to waste my time for searching suitable websites related to my niche anymore and then talking to the web admins. It's just less headache.
Good luck with this. Take care

Hi there. These are my top 3 sites where I  buy backlinks.
1)https://godspeedlinks.com/
2)https://www.linksmanagement.com/
3)https://www.seoclerk.com/categories/Link-Building

All of them are reliable and trustworthy. Goodluck.