I’ve used a bunch and typically avoid Apple’s own apps, but recently went back to the stock Apple Podcasts app and it’s better than pocketcasts, which was my daily driver for the past few years.
Downcast. UX is bloated, but so many deep features/customizability — ideal for podcast power users like me
I am mostly just in the default Apple Podcasts app - I like the ability to become a paid subscriber from inside the app
youtube and spotify. not crazy about either but they’re both so dang convenient
I use Snipd because I like that I can double tap my headphones and save a minute of audio with transcription to my notes.
Castro (iOS) is my go-to, solely for its Inbox feature: https://arun.is/blog/double-queue/