A podcast is another great option for walking too, I recommend checking out ADHD for smartass women (regardless of your gender). Tracy is focused on the ADHD paradigm (school of thought) that frames ADHD as a neurological difference that has advantages and challenges that you can basically hack, once you get some hacking tricks. Medication isn't helpful for Tracy so she uses exercise first thing in the morning, and tons of other tricks. Modern psychiatry basically frames ADHD through a pathology model and not a difference model, such as the YouTube series of clips you can find by Russell Barkley about the essentially ideas for ADHD. These aren't unhelpful ideas, but basically tell you without telling you that ADHD makes you broken. ADHD for smartass women is the opposite vibe, and I found it incredibly refreshing and made me actually feel there are positives to having ADHD as well. I particularly enjoyed episode 23 and 24:

Episode 23: ADHD and Rumination

Episode 24: What Does ADHD Feel Like