Friends, if you want to grow your site fastly then you should try doing guest posting. Because this is only the way by which you can get high-quality do-follow backlinks for a lifetime
Guest post submission sites are those sites that allow you to submit a post on their site.
These sites are with high Domain Authority, Page Rank, and Page Authority.
Such sites have a high volume of unique visitors per day. These sites allow guests to post under some circumstances and guidelines.
The guest post submission sites have their own terms and conditions for submitting a guest post.
After approval, your post will appear on their site.
List of guest posting submission sites