2.) Social Media Engagement
-Sharing your content on social media. For huge visitors and traffic might be. If there is a traction (e,i. Likes, comments and shares) then involve it on paid campaign.
And actually depends on the location you were targeting in. Based on the traffic
3.) Outreaching people within your niche.
-By means of email, chats or phone.
TIPS : Don't ever try to tell them about links. Linkers know actually what they want and needs.