Podcasters Paradise - John Lee Dumas' flagship offering, I've been a member since 2015 and still incorporate many of the things I learned in those early days in my business today.
Podcast Websites - An all in one service that offers a top-flight website and podcast hosting in one location
Captivate podcast hosting - Affiliated w/ Podcast Websites, it's used by many of the top names in the industry, and has too many cool features to mention here. It's what I use for my hosting, and what I recommend new clients to use.
libsyn podcast hosting - They're basically the Ford Motor co. of podcasting. Not the most stylish, but reliable.
The Feed: An informational podcast published by libsyn
Repurpose - An outstanding resource for easily repurposing podcasts into youtube videos, social media posts, and much more
Descript - Seemingly updating their platform every 5 minutes, Descript will transcribe audio with decent accuracy, leaving a bit of cleanup with grammar, punctuation, capitalization. It also removes filler words "um, uh, you know..." and much more. It literally saves hours upon hours of tedious labor every month.