Are there alternatives to malignant social media?

In my effort to escape a mild FakeBook addiction (at least I like to think it is not too serious a problem), I have been searching for other social media that are perhaps not as malignant. Perhaps I am looking for the equivalent of digital methadone?
One website I used to like is Medium.com — I specifically use the past tense. It offers ‘amateur’ authors (and the occasional pro)…