How about getting him a high-quality set of wireless Bluetooth headphones that he can use to listen to his favorite podcasts wherever he goes? This way he can listen to them in peace without bothering anyone around him. You could also create a personalized playlist of his favorite podcasts for him to enjoy. Additionally, you could gift him a subscription to a premium podcast platform that he is not currently subscribed to, such as Luminary or Stitcher Premium.
Or you can get him a star map with an important date you share.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.