You can search here:

https://www.happyscribe.com/public

Didn't find Hidden Brain through a quick search, maybe it's there and I didn't have enough patience.

I'd love to know if there are other services similar to happyscribe.com .. anyone know any?

It adds so much value to a podcast to be able to search for words/text and read instead of just listening.

Also, if you want to add your own thoughts to something that was said, with a transcription you can simply make a PDF and attach an annotation or highlight sentences.

If like me, you like to listen to podcasts and take notes and add your own thoughts, and if you have found some handy tools for that or come up with your custom convenient workflows, I'd really like to know.