Do any of these platforms provide additional discoverability? I occasionally publish articles, usually of the technical "how-to" variety with a focus on areas that aren't already widely documented. To date I have published these on Medium because if you publish via an established publication like Towards Data Science your articles can get decent reach without much effort. I'd ideally like to move away from Medium but as I am not well-known, without an established platform to provide visibility (or a lot of self-promotion) the reality is that no one would read my articles.
That's not necessarily true. I have had success in the past with certain specific articles ranking high on google because there wasn't anything that went into that much detail about a more focused topic. E.g. AWS Cognito. In fact, you could probably document almost anything technical about AWS and get a lot of traffic since their documentation (or lack thereof) is so bad.
