1: Link round-ups and listicles - Roundups (also known as resource pages) are collections of top tools or resources on a specific topic. Search for publications that post relevant round-ups and ask to be featured.
2: Reach out to leaders - Reach out to bloggers, thought leaders, influencers, and other industry pros. Offer them your product for few months in return for a review (and backlink from their site)
3: SaaS partnerships - Partner up with other SaaS companies. More the connected you are in the industry, the easier it is.
4: Linkable assets - Create valuable linkable assets and outreach to websites with relevant content. Like some stats or some unique insights.
5: Paid backlinks - People have different schools of opinion here, but I am big on buying links and saving the effort and time.
6: Link insertion - Identify pieces of content on someone else's website that can link back to your site.
7: Guest posts - Research publications that post about SaaS and software and accept guest posts.
8: Unlinked brand mentions - Reach out to website owners who have mentioned your brand but didn’t include a link. You can set up a Google News alert to regularly find such websites who didn't include a link.
9: Most important, always have links from websites, which you think, could bring you relevant traffic.