I really need to look into D3 some more, I own the switch version and after the main story I kinda got lost on what to do a few seasons ago when I last played (around the time of the last added DLC character I think)
As for Switch ARPGs I can recommend Marvel Ultimate Alliance 3, similar idea with Marvel characters, I enjoyed the main game, need to get into the DLC especially with Dr Doom and the Punisher being added