I haven’t listened to enough art podcasts to give many first hand reports, so I offer you a list of lists of art podcasts, many of which give good capsule descriptions of the podcasts.
Yes, there is a good bit of overlap between the lists, but you should be able to find something that suits you.
Personally, I’ve been listening to the Plein Air Podcast on Outdoor Painter while I paint. It features interviews with notable artists, as does The Artful Painter Podcast, which seems to be left off most lists for reasons that escape me.
The Best Art Podcasts You Should be Listening to in 2019, Artwork Archive
7 Essential Podcasts for Artists, Artwork Archive
12 Top Art Podcasts to Add to Your List, Artists Network
The Best Art Podcasts You Should be Listening to in 2019, Listen Notes
Eight art podcasts to listen to right now, Art UK
Top Ten Podcasts to Inspire Artists, iHeartRadio
Fine Arts Podcasts, PlayerFM
Oil Painting Podcasts, PlayerFM
Our Pick of the 10 Best Art Podcasts Right Now, Sidewalls
15 Podcasts For The Inspired Artist, We Edit Podcasts
Great Art Podcasts, Sophie Ploeg
8 podcasts to spark your creativity, Marloes De Vries
14 Art & Design Podcasts Hosted by Women, Illustration Age
10 amazing podcasts for digital artists, Creative Bloq
5 illustration podcasts to kick start your day, Creative Bloq
Podcasts for Illustrators and Designers, Medium