If this is meant to have a formal poll, I’m afraid I’m not seeing it.
I guess the two most common ways I enjoy D&D when neither playing, running, or preparing, are YouTube videos and videogames. I tend to prefer advice, informational, and anecdotal ones over livestreams (which I generally just don’t have the blocks of time to watch). For videogames, it’s generally the Neverwinter MMO (though I’m hardly a hardcore player of it).
I will idly pick up and read one of the old TSR fiction line books, for nostalgia’s sake, now and then. Most of them don’t age all that well, but it does take me back.
Also, debatably, my music. I took an old unused campaign idea and pretty much started using that as the basis for the songs for a musical project of mine, Wurm Fang.