Good organic backlinks are very difficult to get. Especially if your website is new to the space. Building up a backlink profile using social media takes time and requires a high level of constant engagement with your audience. Something that might not be suitable for all markets. There is however a way to get links, and that is by link prospecting. This involves some research and outreach. Here are some potential sources of links:
Partnership pages: Relevant partner sites are likely to be willing to link to your site or relevant page in request. In some cases you won’t even need to link back.
Industry resource lists: These are great for relevant links that both server and SEO purpose and also an online marketing resource for anyone looking for your services.
Blog communities: Guest authors or commenters may have their own sites worth promoting to, although this should be limited in order to avoid getting penalized by Google for excessive article marketing.
Backlink analysis: Sites that link to your competition can also be sources of links to you. In addition getting links that they have narrows any advantage they will get in the search rankings.
Associations: View membership lists for potential prospects. Look at becoming part of these groups and you get linked back from their main site pages. Depending on the industry there are lots of groups.
Social communities: Search social communities or forums for other potential link prospects.