update 7

Here are some of the sites, where you can create quality backlinks for free.

https://answers.microsoft.com/en-us/profile/a1bacba2-6816-423d-a815-f766d808e174?activeViewTab=Profile&updated=1

https://ulbertorocks.livejournal.com/profile

https://www.dell.com/community/user/viewprofilepage/user-id/2840371

https://about.me/jennywilson

https://about.me/umapathysekar

https://www.instructables.com/member/onlinedecoded/

https://jennywils.deviantart.com/

https://issuu.com/onlinedecoded

https://www.buzzfeed.com/skyismax

https://en.gravatar.com/jubabs