There are 10s of Scaling frameworks available. I personally have only seen SAFe, LeSS, and Spotify in action. SAFe is the most popular agile scaling framework. and works particularly well in organisations with lower risk appetite for their agile transformation. Usually, in agile transformations, more pain means more gain. And little pain means little gain. I have seen fantastic SAFe implementations with great results.
By saying this, I'll be offending some anti-SAFe people. Well I'm myself both a Certified LeSS practitioner and a SAFe program consultant. I keep my emotions out and evaluate the advantages and disadvantages of frameworks objectively.
Now we must also consider that all frameworks are the starting point and organisations need to evolve beyond frameworks. For more information on this, please read on the Shu-Ha-Ri model and how to start with a framework and move to the right approach for your entire enterprise.
I do publish a lot of articles. If you are interested to know more about Agile and Scaling please see my blog here: https://sprintagile.com.au/blog/.