In the age of LLMs, it wouldn't be hard to build a UI on top of a Wikipedia dump [1] that satisfied any particular idea of serendipitous flipping.
[1] https://en.wikipedia.org/wiki/Wikipedia:Database_download
Or you can just hit the Random button https://en.wikipedia.org/wiki/Special:Random
Or you can just hit the Random button https://en.wikipedia.org/wiki/Special:Random