Link building is an essential aspect of search engine optimization and involves getting other websites to link back to your website. Here are some of the best ways to create backlinks that are used by SEO companies:
- buying Links (most do so, but it should be avoided)
- guest posts
- requesting influencers in the domain to link to their sites
- find sites that have broken links, write them an email, and inform them about the problem
- mention that you have better content or a replacement (it can be done via social media, blogs or review platforms)
- some agencies have garnered links using podcasts
There is no surprise a lot of businesses outsource this work to specialized companies as it requires much time. Fortunately, there is a big number of such services. But don't choose only by popularity as there is a risk you will overpay for a brand name. Having explored this in detail, I ended up using Rank Engine service
https://rankengine.io It has been working really well for me and the price is reasonable.