Which are the trending link building techniques you will follow?

Check out this list of some link building stretagies which online marketing experts use:
Articles
Product review
Make interviews
Question Answers
Infographics
Video marketing
Podcasts
Free tools
Pinterest
Reddit
More techniques see here : https://www.solwininfotech.com/blog/seo/uncommon-link-building-techniques/

I used to regularly follow few link building strategies are:
•         List your site in directories
•         Write the best guest post
•         Write a blog
•         Build backlinks using forum, classifieds ads, social bookmarking
•         Discover competitors' common backlinks
•         Recovering the dead backlinks
•         Find the strongest competitors healthy backlinks
•         Find the most relevant link building opportunities