Backlink building new and latest activities

I need to know backlink building new and latest activities in SEO

The most effective backlink building techniques are:

Guest posting
Article submission
Press release submission
Social bookmarks
Classified ads
Infographics submission

Generally, off page activities are used to build backlinks for website. In SEO no new activity is invented. all the activities are old and in use.
you want to build backlinks for which niche website?