To keep my brain working over the Christmas period, I did a bit of coding, and now present (in a very alpha state), a randomiser that picks from the approx. 3600 podcasts I've found in the last three years. Just visit:

https://audiofiction.co.uk/

and hit "refresh". You'll be greeted by a cover image and description for a random podcast. Click on it to go through to a page with more tags and embedded players.

(Sometimes the image doesn't show up, if people haven't set an <image> tag. I've not cracked the itunes:image puzzle yet.)

If you want to submit your podcast that started before 2019, or improve the tags on your podcast, that can be done via the contact page here:

https://www.thecambridgegeek.com/datacontact.php