With every alternative, the prevailing issue is the fact that your data is as safe as the company your data is with. But I think this can be remedied by doubly external backups.
Practically speaking, having a backlog of vast amounts of similar data to you, the true way to get out of the loop is to try something different. To do the things that wouldn't fit as a data point in that list format.
I am sure that at the very least you'll get some ideas on how to approach this. I have aggregated different sources on that, but I am not an expert myself at this point in time.
We end up applying multiple filters throughout the process, but try similarly to keep them as simple as possible not to too strongly bias for one thing.
I even go as far as avoiding writing code in the first place. You can give a very simple imaginary problem to solve and see how they think. I believe good software engineers are essentially problem solvers, the code just happens to be the tool for it.
I have asked to estimate the amounts of skittles in a litre cube box.
It's probably apt to ask yourself what sort of revenue model you prefer to support for the value provided. YouTube is a rare case where they offer multiple options.
In terms of tech, I just started one that allowed me infinite customizability, but still leveraged good solutions to common needs, so I went with Gatsby. It is a static site with a lot of potential functionality.
It is still more convenient to do blogging in Substack, but for potential dev content it is too limited in terms of what you can post there. One of my posts has a computer vision based game that leverages the webcam, and that would not have been possible there.