If you are using Blogspot, you can easily get backlink from its profile.
Using HTML you can get dofollow link.
Similarly, using profile creation method you can also get backlink from many site as Github, Mozilla Addon Page, Slideshare, Linkedin, Quora, Ask.fm, Google+, Facebook, Twitter, Instagram, vk.com, WordPress.org forum, Crunchbase, Pinterest, etc. There are many sites. All you need to do is create profile properly. Concerning privacy, I would also suggest to check delete option either its easily available or not.
These backlinks can be helpful for brand keyword.