Undrave
Legend
Anecdotally, my last session was 5 hours long, and was entirely social and exploration pillars. Not a single combat this session. Much of the exploration was exploring the sewers in Waterdeep. It included searching for clues of guild signs, not getting lost, mapping the sewers, finding secret passages, dealing with the stench of the sewer and other unsanitary conditions, recognizing and avoiding hazards, both traps and creatures, using light sources, and resource management (both in fear and what spells to prepare*)
Not gonna lie, part of me think it sounds really cool and fun, but another part of me feels like it would be super tedious and I'd get bored halfway through... so I'm probably not the judge of that pillar so I'll shut up now

Also, Darkvision being on so many races obviate the light source issues...