I’ve listened to a lot of different music over the years. I listen to music so much all day mostly as background noise… I recently moved to a new place, and the neighbor sometimes plays Jazz in the weekends. I seriously open the windows and turn off my own music. Something about it is just soo nice and chill. Something with the vibe, I don’t know. The closest genre I listen to similar to Jazz, is Downtempo. Here for reference: Youtube Music | Spotify
I find some of the best introduction to the whole jazz ethos is to go old-school with Big Band and '20s jazz in general. You can get people started down the path to radical improvisation by the tighter, more constrained forms of that era and then guide them toward the more … ah … challenging stuff.