Link building techniques which are effective in 2019

[william17]

According to me, effective content marketing and guest posting works well these days.

Care to explain what content marketing? Guest posting I understand but cm for link building!!!

it is about creating and distributing such content which is valuable and relevant for others also so that they want to link to you.
Also, what you can do is select some blogs and find broken links in their articles, create relevant content against it and content the blog owner and offer your content link against the broken link.