A trending page not entirely focused on meta Steem will be a healthy sign. I think search filters to find content are extremely important. Following single accounts is primitive, and while communities seem like a step in the right direction, they have little volume and I'm not even sure how to use them. Using multiple checkboxes and keywords is a fairly standard way to enable discovery of content, such a purchasing a product on Amazon. I know this has been discussed for years, but either Steemit doesn't see it as an issue or they think other projects have higher priority. If you are interested in Python programming, you might be able to reappropriate this livestream program to randomly select a recent post by printing the output to a text file and using the random function.