Guest posting, press releases, social media (Linkedin, Twitter...)
rproffitt commented: Isn't that X now? +17
Guest posting, press releases, social media (Linkedin, Twitter...)
I agree with the above words. Focus on authoritative and relevant websites to your niche, and ensure your content is valuable to their audience. Check service Collaborator.pro, which suggests getting backlinks. There are reputable sites from different categories that you should strive to get into (+Ahrefs metrics). And personal advice, check the pages from which it gathers traffic because the site can be about business, and the top pages are far from good quality.