Try to create it from these platforms:
Web 2.0 (Wordpress, Blogger, Hubpages,...)
Social Network (Facebook, Twitter,...)
Bookmark (Pinterest, Slideshare,...)
And some pages and forums that have high PR,DA,PA.
1. Profile BL
2. Web 2 BL
3. Blog Comment BL
4. Article Posting BL
5. Social Networking BL
6. Business Listing BL
7. Competitor analysis and BL
8. Broken link mailing
9. Advertising, forum post, bookmarking
10. Review Business BL
11. PBN kora
12. Expired Domain BL
13. Various Paid marketing in FB, Tw, LinkedIn
Quality backlinks come from relevant and high quality niche site. However it is a bit challenging to get a dofollow link from the said niche site. Nofollow links will do though.