What is best link building strategy..?

[studyinukraine]

What is best link building strategy..?

 

[vinvin]

id say guest posts and link buying with sites that have DA of around 20 or higher

 

[DaintyCloud]

Relevance to niche of website.

 

[shibanni]

Get backlinks from the relative niche sites and guest posting is the best way to generate high-quality backlinks.

 

[Strickland]

I think it's best to let your content find its own place in the SERPs first before you start link building. Doing this ensures you don't over link it, which I believe will become an issue in future updates.
Just as @shibanni has mentioned, niche edits and guest posts work very well when done properly.