What are the top trending blogs that will give me a beginner's guide to SEO in 2020?

There are many resources available for you to learn about SEO. The following will give you a tremendous amount of information:

SEMRush Blog

Neil Patel

Ahrefs Blog

Moz Blog

Search Engine Land

Backlinko

Search Engine Watch

Search Engine Journal

SEO Roundtable

SEO By The Sea