The Dungeon Crawler Carl audiobooks are some the best l I’ve listened to!
I’m sure you’re aware of this, but they do have the first book available as an audio drama from:
https://soundbooththeater.com/series/dungeon-crawler-carl/
They call it an “audio immersion tunnel.” Season 1 = Book 1, and more are in production. Episode 1 is free, the whole “Season” is $21 USD.
It’s much better than the Graphic Audio productions, at least in my opinion.
Edit: Cold reads/bts streams are also on their YouTube channel. Interesting to see behind the curtain a little bit.