We build rank through a number of link building methods: social media marketing, blog/forum commenting, promotion of quality content through blogs. It's different strokes for different folk as far as SEO is concerned. The best you can do is learn about each link building method and decide which would best fit your site/niche. Hope that helps. Have a good day!
Strategy would be different for every one, but Google principle same for all. so work for Users & write quality content & get authority links.