Here are my personal favourites:
Keeping Leo single (aro ace maybe)
More single characters
Nico going all-out crazy at some point
Percy blood bending
Will saying "move I'm gay" in Tower of Nero
Nico coming out on his own terms instead of being forcibly outed
A child of Hecate being in the seven (the POTENTIAL)
The seven apologizing to Nico (except for Hazel)