Are there podcasts or blogs authors should be aware of that specialize in promoting Indie authors?

In terms of promoting an author, I don’t have any strong recommendations other than just searching online for podcasts or blogs that are specific to your writing genre. As for podcasts that can be extremely helpful for authors learning the industry and marketing strategies, I very much recommend listening to Mark Dawson’s Self Publishing Formula Show, The Book Marketing Show, and The Creative Penn Podcast.