Considering current AI TTS systems have reached "pleasant" performances (as evidenced by https://danwahl.net/unsong-audiobook/ and usage of the same Polly API by Pocket), it can be a worthwhile endeavor to create a system that automatically creates podcasts episodes from posts curated by admins and tagged auto-podcast.
PS: I feel that I should mention that current AI TTS services are UNFREE software and by using them we are perpetuating bad equilibria. See Free Software, Free Society - Selected Essays of Richard M. Stallman, 2nd Edition.