People don't backlink so how can I beat the competition?

I am having trouble staying ahead of the established competitors on my e-commerce website for a niche product. While rival sites have more than 20, my DR is stuck at 8.

Although the sector currently exclusively shares on social media, which I understand does not count as back links, competitors appear to have some strong back links from prior years.

I want to know how I can outperform the competition if they have a history of connections yet there are no relationships in the sector now. In a sense, blogs are obsolete.