The Athletic does have the standard beat coverage and game day stories, but they get into think piece territory quite often per the writer's specialty.
For examples (from the Toronto side of NHL coverage) of stuff that I like (which you're all probably aware already as I just re-share it here anyway):
Jack Han basically does a long form version of his 1-minute Tactics video breaking down plays from a coaching and strategy perspective, illustrating why a team is doing this and whether or not it is effective.
Tyler Dellow sees something in the video or data, asks a question about it, and then does a deep dive into interesting slices of data pivots. Most recently, his interest was piqued by a coach saying a certain player was good at line changes, so he tracked the plays and shot metrics following line changes and found that
Matthews was a cut above the rest.
Justin Bourne gives a coach's perspective on what they look for in players that might make the NHL jump, as well as insight into the human side-effects of asset management. He'll be adding team structural analyses across the league soon as he did before.
Sean Tierney expands on the visuals that he has been putting together, pulling out interesting highlights on passing and zone entry/exit data that's being publicly collected.
Scott Wheeler, formerly of PPP, lends a scouts eye to prospect profiles and now covers the Marlies and the Draft from the Leafs' perspective.
Corey Pronman is basically doing what he did before, but under a different banner, so now I actually get to read it.
Mirtle is also writing much the same that he did before, but without the prescribed formula the newspaper format had. His podcast with Jonas Siegel is still around, but pretty short and occasional.