What was the single best article you read in 2020 about growth/marketing for SaaS startups?

We are always on the lookout for a valuable piece of information to grow our business. IndieHackers has been my go-to place in recent times to keep myself updated and learn new things. I spend a lot of time daily in IndieHackers, Reddit, FB groups to learn about how to promote our products/services.

Kindly share the best article/post that you have come across in 2020 regarding growth hacking/marketing, etc.

Let me start with https://blog.jaredigms.com/an-engineers-guide-to-cold-outreach/

Merry Christmas!