oh, for organic rankings there's 3 types of links you should focus on:
- quality PBNs
- quality guest posts
- quality niche edits (aka link insertions)
Of course, black hat SEO works, too but me and technology are not very good friends, so unfortunately I can't tell you how genius hackers abuse google (but I'm glad that they do

)... but you see some alien stuff on this forum sometimes, and you wish you had this power yourself
Anyway.... try the 3 types of links that I've mentioned if you have the budget. They're the safest and most impactful ones on the market today, they will definitely push you up the SERPs if you do it right and are not a victim of google's randomness thingy that google apparently pulls on webmasters to force them to buy ads