I recently found out that Medium automatically assigns every story from certain publications for further distribution. There is one I write for that falls into that category and all my highest earning stories appear in that publication. I think it’s because they have a quota for each topic area and its an easy way for them to meet it when the topic is not being written about by enough people. For instance, if you wrote about cryptocurrencies, it would probably be selected for further distribution because, while everyone is able to write about their feelings, few people understand cryptocurrencies well enough to write about them. So, there are a couple of publications to which I contribute and everything else I just release into the wild.