I've also found that type of developer marketing valuable many times in the past. It's sometimes obvious its going to end in a pitch for the product, but often it does a good job summarizing the key problems in the space, mentioning or showing other solutions / offerings, and pitching which tradeoffs they made for their own product and how they solved issues.

Even if you don't go with the ad, you can quickly pivot to other named players or get a better understanding of the terminology or jargon to start searching more.

Another decent one would be linux sysadmin info from Digital Ocean and the likes.

But for every joelonsoftware there are 99999 sites that have all copy/pasted the same tutorial about something basic and try to push some random product or just ads.